Name: Used Composite (-10) 20 oz 30" Prime 919 Bat
Brand: Louisville Slugger
Price: 75 USD
Availability: SoldOut

Louisville Slugger

Used

Length

Bat Certification

Drop

Weight

Condition

Barrel

Bat Material

Brand

Release Year

### About the Louisville Slugger Prime 919

Louisville’s Slugger’s Prime 919 bat is BBCOR certified and one of the best performing two-piece composite bats on the market. With a large barrel and lighter swing weight, the Prime 919 is a balanced bat with a mix of power and speed. Brand new in 2019, the patented VCX Technology improves the durability and weight distribution of the bat to control vibrations and enhances the soft feel on contact. The RTX end cap contributes to a larger barrel and provides a larger sweet spot for both power and contact hitters alike. The new LS PRO Comfort Grip is an upgrade from the traditional Lizard Skin Grip in prior years and improves the cushion and tackiness of the grip.

Prime 919

Used  Composite (-10) 20 oz 30" Prime 919 Bat

2019 Composite (-10) 20 oz 30" Prime 919 Bat

Used USSSA Certified Composite (-10) 20 oz 30" Prime 919 Bat

2019 Hybrid (-10) 20 oz 30" Prime 919 Bat

Used USSSA Certified Louisville Slugger Composite Prime 919 Bat (-10) 20 oz 30"

Used  Louisville Slugger USSSA Certified Composite 20 oz 30" Prime 919 Bat

Used  Louisville Slugger USABat Certified (-10) 20 oz 30" Prime 919 Bat

## Louisville Slugger Meta Baseball Bat


The Louisville Slugger Meta series is at the forefront of technological innovation in baseball bats, offering players a high-performance combination of power and balance. Featuring Louisville Slugger’s patented 3FX Connection System and EKO™ Composite Barrel technology, the Meta delivers an explosive energy transfer. This bat also delivers a stiff feel with minimal vibration—and a massive sweet spot.

**Perfect bat for**: Young players unlocking their power in the batter's box, who want a lightweight design with a maximized barrel size.

 



### Key features include: 




* **EKO™ Composite Barrel:** Engineered for a light swinging weight and maximum barrel performance, producing a unique combination of speed and power.
* **3FX Connection System:** Provides a stiff feel on contact while significantly reducing vibration to the hands, ensuring maximum comfort and control.
* **Premium LS Pro Comfort Grip™:** Added to handle for added tack and cusion.
* **GT1™ End Cap:** Maximizes barrel length and swing speed, ensuring that players can make the most of their natural power.
* **Revolutionary Three-Piece Design:** Combines advanced materials and innovative technologies to offer a bat with unmatched feel, performance, and durability. 



### Top competitors comparison: [DeMarini CF Zen](https://sidelineswap.com/shop/baseball/bats/demarini/cf-zen-2020/l8432) and [Easton ADV 360](https://sidelineswap.com/shop/baseball/bats/easton/adv-360/l59709)

The Louisville Slugger Meta distinguishes itself from competitors like the DeMarini CF Zen and Easton ADV 360 by offering a superior balance of lightweight performance and powerful precision. While the CF Zen is known for its Paraflex Plus Composite construction for flexibility and balance, and the ADV 360 features two-piece ConneXion+ technology for energy transfer, the Meta’s EKO™ Composite Barrel and 3FX Connection System create a perfect harmony of speed, power, and control not found in other models, setting it apart as the ultimate choice for serious athletes. 



### Progression of the Louisville Slugger Meta Series

Here is a list that details the progression of this series, highlighting the main features and advancements with each new model.

**2019 - [Meta Prime](https://sidelineswap.com/shop/baseball/bats/louisville-slugger/meta-prime/l9512)** 
- Introduced 3FX™ Connection System, designed to reduce vibration and provide a perfect feel upon contact. 
- EKO™ Composite Barrel, offering a light-swinging bat with a massive sweet spot. 
 - RTX End Cap design maximizes barrel shape and improves the sound on contact. 
 
**2020 - [Meta](https://sidelineswap.com/shop/baseball/bats/louisville-slugger/meta/l59403)** 
- Continued with the popular 3FX™ Connection System and EKO™ Composite Barrel. 
- Introduction of the Premium GT1™ end cap that maximizes barrel length and swing speed. 
- The 2020 model became known for its "EJUICE" technology, which created a highly responsive and massive sweet spot. 
- The bat was noted for exceptional balance and a significant reduction in hand sting. 
 
**2021 - [Meta](https://sidelineswap.com/shop/baseball/bats/louisville-slugger/meta/l59403)** 
- Upgraded with the new VCX2™ Vibration Control Connection System, enhancing the feel and reducing vibration more effectively. 
- Retained EKO™ Composite Barrel for a light-swinging bat with a massive sweet spot. - Premium GT1™ end cap as introduced in 2020 continues, optimizing barrel length and swing speed. 
 
**2022 - [Meta](https://sidelineswap.com/shop/baseball/bats/louisville-slugger/meta/l59403)** 
- New F2X Performance end cap design, enhancing barrel flexibility, and maximizing the sweet spot. 
- Continued improvements on the VCX2™ Vibration Control Connection System for enhanced feel. 
- EKO™ Composite Barrel technology persists, ensuring a lightweight feel with a large sweet spot. 
- Marketed also for its balanced swing weight, catering to contact and power hitters alike. 
 
**2023 - [Meta](https://sidelineswap.com/shop/baseball/bats/louisville-slugger/meta/l59403)** 
- The latest Meta integrates all previous technologies while focusing on even greater balance and a faster swing speed without sacrificing power. 
- Materials and design updates aim to increase the sweet spot further and enhance the bat's feel during contact. 
- Continued refinement of the VCX2™ Vibration Control Connection System for optimal stiffness and flexibility, reducing hand sting. 


### What people are saying (edited for clarity and brevity)

**PROS**



* This bat has a fantastic feel, sound, and performance on miss-hits. It boasts one of the largest sweet spots in BBCOR. Although it lacks feedback, it is very easy to swing.
* Great feel and pop. Although I usually change grips, the stock grip on this bat is solid. The durability is very impressive as well, as the bat has already outlasted most others.
* No failures on Meta bats except cosmetic chips. They perform better than new. High school varsity team used 32-3 for 2 years without issues. Change grip tape yearly and keep hitting!

**CONS**



* The finish will chip if hit against spikes.
* It's expensive.... and not crazy about the color.
* This bat has no pop.


### **Certification**: BBCOR, USSSA


### Expert Notes (Parker)

The Louisville Slugger Meta is still a slightly newer model. The meta is similar to the DeMarini CF which offers a lightweight composite handle with a huge barrel made for every sort of hitter. A popular series that offers great jump-off-the-barrel when you hit the sweet spot and keeps the sting off your hands when the ball is missed on the cap or handle. 


Pop: ⭐⭐⭐⭐

Durability: ⭐⭐⭐⭐

Vibration: ⭐⭐⭐⭐⭐

 
**Mid-balanced** or End loaded?

CAT9

## DeMarini CF Baseball Bat


The CF series is DeMarini’s flagship line of composite bats, known for their innovative technology and exceptional performance for a wide range of players. The CF series combines comfortable contact, explosive power, and unmatched swing speed. Featuring Paraflex Plus Composite construction, the CF series has a large, light sweet spot, and its 3Fusion Connection dramatically reduces vibration and enhances weight distribution. 

**Perfect bat for**: Young players seeking a two-piece composite bat with maximum barrel control and pop.


### Key features include: 




* **Paraflex Plus Composite Barrel:** Engineered for consistent and responsive performance across a wide hitting area, enhancing pop and feel.
* **3Fusion Connection:** Reduces vibration and redirects energy back into the barrel, improving performance and comfort.
* **ReAction End Cap:** Increases barrel performance without compromising swing speed, optimizing the overall balance of the bat.
* **Two-Piece Construction:** Delivers a nice flex at contact, creating a whip effect that drives the ball with more force.



### Top competitors comparison: [Louisville Slugger Meta](https://sidelineswap.com/shop/baseball/bats/louisville-slugger/meta/l59403) and the [Easton Ghost X Evolution](https://sidelineswap.com/shop/baseball/bats/easton/ghost-x-evolution/bat-material-composite/l228675)

The DeMarini CF stands out with its exceptional use of Paraflex Plus Composite and 3Fusion Connection technology, which provides a perfect blend of feel, flex, and performance. While the Meta is celebrated for its EKO Composite Barrel and balanced swing weight, and the Ghost X Evolution is recognized for its Dynamic Feel System, the CF shines with its ability to deliver a large sweet spot, reduce hand sting, and maintain a consistently high level of performance, positioning it as a top choice for players who prioritize comfort and power.


### 
**Evolution of the DeMarini CF series:** 


Here is a list that details the progression of this series, highlighting the main features and advancements with each new model. 
 
**2015 - [CF7](https://sidelineswap.com/shop/baseball/bats/demarini/cf7-2/l6993)**
- New Low Pro end cap and RCK knob for better balance and comfort. 
- ThermoFused Taper enhances the sweet spot and bat speed. 
- D-Fusion 2.0 handle technology further reduces vibration. 
 
**2016 - [CF8](https://sidelineswap.com/shop/baseball/bats/demarini/cf8/l7553)**
- Lighter and more durable than previous models. 
- Introduction of the D-Fusion 2.0 handle across all models for improved feel and reduction of vibration. 
- Increased sweet spot size and better balance. 
 
**2018 - [CF Zen](https://sidelineswap.com/shop/baseball/bats/demarini/cf-zen-2020/l8432)**
- Introduction of the ParaFlex Composite material for better weight distribution and performance. 
- 3Fusion handle and end cap for optimized weight control and minimized vibration. 
- Various drop weights available to accommodate different player needs. 



### What people are saying (edited for clarity and brevity) 

**PROS**



* A kid in a slump hit his first-ever home run with this bat. It arrived just in time for a playoff game and worked great for my average-sized 11-year-old son - not too heavy.
* After breaking in this bat properly, it really performs well! My son uses it for our USSSA 8U Travel team and you can easily tell when it's hit on the sweet spot. The bat is also forgiving on mis-hits, often resulting in faster grounders than usual (for this age group) and very high pop.
* This bat has more pop than most USA bats, similar to BBCOR/USSA. We broke it in with tee hits, and my son hit missiles and balls over the fence on the first day. Expensive, but worth it for avid players.

**CONS**



* Great indoor results with the new non-Easton bat during coach pitch pre-season. Disappointing mid-season pop-up infield hits. I've always used Easton before, won't try other brands again.
* Great pop, but poor performance when missing sweet spot. Treated with care, but still cracked in Apr. Son upset I didn't allow use in cold weather, with heavy balls or pitching machines. It was mostly used as game bat last year, did not last into 2nd season.
* My son's bat barrel cracked after hitting his first HR, leaving him without a bat during All Stars and elimination series.


### **Certification**: BBCOR, USA, USSSA


### Expert Notes (Parker)

The DeMarini CF is a classic model that goes back to 2015 and offers one of the hottest models (2017) but is limited in use as its performance surpasses bat standards. Overall, the CF reflects a classic design which has been the same since 2015. A two-piece composite that offers a large barrel and sweet spot with a lightweight handle that creates a whip-like feel to it with the flexible connection between the handle and barrel. 


Pop: ⭐⭐⭐⭐

Durability: ⭐⭐⭐

Vibration: ⭐⭐⭐⭐

 
**Balanced** or End loaded?

### Expert Notes
Endurance is the name of the game when it comes to Easton’s Mako bat series. Despite being discontinued in 2017, Easton Mako bats continue to sell very well in the modern market. This two-piece composite bat offers an additional jolt of pop at the plate, and its anti-vibration technology makes getting jammed a little less painful—physically, at least. The 2016 Easton Mako, in particular, has ascended into baseball bat folklore because of its neon green colorway and insane ability to demolish baseballs (although some hitters prefer the orange 2015 model, too). Considering the fantastic prices you can find Easton Mako’s listed at, it remains a top metal bat value pick.

Mako

## DeMarini The Goods Baseball Bat


The Goods series has become a popular addition to DeMarini’s lineup. With a hybrid “Half + Half” construction that merges a powerful alloy barrel with a composite handle, The Goods series is dedicated to providing a unique blend of weight distribution and power. The bat caters to power hitters looking for a significant end-loaded swing weight and maximum energy transfer. Featuring a unique X14 Alloy Barrel for maximum stiffness with a massive sweet spot, the bat is dedicated to generating unparalleled pop.

  
  

Perfect bat for: Players who want an end-loaded swing weight to dominate the field with sheer hitting power.  
  

### Key features include:  
  

-   X14 Alloy Barrel: Engineered for maximum stiffness and a massive sweet spot, ensuring explosive power on contact.
    
-   Half + Half Technology: Combines a stiff composite handle with an alloy barrel for optimum weight distribution and reduced vibration.
    
-   Direct Connection: Offers a solid feel, maximizing energy transfer to the ball for powerful swings.  
    Tremor End Cap: Made from the stiffest materials in the DeMarini line, contributing to explosive pop and unmatched durability.
    
-   Heavy Swing Weight: Designed for power hitters looking for maximum momentum and force at impact.
    
-   Fortified Metal Compound Knob: A combination of alloy and composite materias to deliver enhanced durability and allow for improved leverage.  
      
    

### Top competitors comparison: The [Louisville Slugger Meta](https://sidelineswap.com/shop/baseball/bats/louisville-slugger/meta/l59403) and the [Easton Maxum](https://sidelineswap.com/shop/baseball/bats/easton/maxum-ultra/l165626)

  

Compared to competitors like the Louisville Slugger Meta and the Easton Maxum, DeMarini The Goods differentiates itself with its focused design on maximizing power. While the Meta is known for its balanced swing and the Maxum for its extended barrel, The Goods aims to provide a combination of a heavy swing weight and a stiff barrel, catered towards hitters who prioritize distance and force over everything else. This laser-focused design on power makes The Goods a standout choice for serious sluggers.  
  

### Progression of The Goods series:

  

Here is a list that details the progression of this series, highlighting the main features and advancements with each new model.

  

**2020 - [DeMarini The Goods](https://sidelineswap.com/shop/baseball/bats/demarini/the-goods/l59750)**  
- Introduction of the X14 Alloy Barrel: A massive barrel designed for maximum stiffness and explosive sound.  
- Direct Connection: This feature was designed to provide a more direct transfer of energy and a stiffer feel on contact, appealing to power hitters.  
- Seismic End Cap: Made of the stiffest materials in the DeMarini lineup, this cap helps to deliver explosive energy transfer upon contact.  
  
**2021 - [DeMarini The Goods](https://sidelineswap.com/shop/baseball/bats/demarini/the-goods/l59750)**  
- Continued use of X14 Alloy Barrel and Direct Connection features for optimized performance.  
- Introduction of Half + Half Technology: A continuation of DeMarini’s innovative approach, combining a composite handle and an alloy barrel for a perfect blend of speed, power, and feel.  
- Enhanced Seismic End Cap: Improved materials for better energy transfer and durability.  
  
**2022 - [DeMarini The Goods](https://sidelineswap.com/shop/baseball/bats/demarini/the-goods/l59750)**  
- Refinement of the Half + Half Technology, allowing for an even greater energy transfer and reduced vibration.  
- Enhanced Direct Connection with reinforced structures for a stiffer, more responsive feel.  
- X14 Alloy Barrel: Further optimized for a larger sweet spot and explosive performance. - Upgraded Seismic End Cap: Continued enhancements for improved sound and feel upon contact.  
  

### What people are saying (edited for clarity and brevity)

**PROS**

-   My son hit three home runs with the Goods bat at a college prospect camp this weekend. He says the current version feels amazing and is the best one yet.
    
-   I upgraded to this bat from my broken 2022 Goods. It has phenomenal pop and is the best in the Goods line.
    
-   This bat bangs!!! I bought this bat three weeks ago and this barrel is huge!
    

**CONS**

-   My son loved this bat from day one. After three weeks of use the plastic piece where the shaft meets the barrel cracked. Definitely expect something better than this for $450. Haven't started the warranty process yet so we'll see how that goes.
    
-   The bat handle now telescopes into the barrel after the junction cracked. We had expected better quality for the price and it's hard to accept a replacement that arrives 2-3 weeks later at best.
    
-   Bat bought 2 months ago broke when I dropped it. It's a good bat but not very durable. Connector piece broke and it telescoped.
    

  

### Certification: USSSA, USA, BBCOR

### Expert Notes ([Tony from BatExperts](https://sidelineswap.com/batexperts))

The Goods is a top performer and the 2024 model is the most expensive hybrid bat on the market. It's an end loaded bat for that power hitter in your lineup. The alloy is strong, and it has a good whip to it. Overall, The Goods is in the top five in the hybrids for both BBCOR and youth. The youth was less popular because it was a heavier-feeling.

  
  

Pop: ⭐⭐⭐⭐

Durability: ⭐⭐⭐

Vibration: ⭐⭐⭐⭐

  
Balanced or **End loaded**?

The Goods

## Marucci CAT 8 Baseball Bats 

 
The Marucci CAT 8 series is part of a lineup of bats consistently praised for outstanding performance and durability. The CAT 8 is a two-piece composite bat designed for a blend of power, speed, and control at the plate, with an expanded sweet spot to help hitters achieve their full potential. The series also serves as a testament to Marucci’s commitment to applying data and insights from professional hitters. Founded in a backyard shed in 2002, Marucci Sports has grown into one of the most reputable names in baseball equipment over the past 20 years. 

 
**Perfect bat for:** Youth to college-level players who are in search of a bat that offers a blend of power, speed, and comfort.


### 
Key features include:




* **AZ105 Super Strength Aluminum Alloy:** Offers thinner barrel walls for a higher response rate and unmatched durability.
* **Multi-variable Wall Design:** Expands the sweet spot and reduces weight, enhancing forgiveness and power.
* **Precision-balanced Barrel:** Designed for optimal swing speed and control, improving hitters' performance across all levels.
* **AV2 Anti-Vibration Knob:** Delivers a better feel and minimizes sting on mishits, ensuring comfort during every at-bat.
* **Ring-free Barrel Technology: **Increases flexibility and promotes maximum performance with no "dead" spots on the barrel.
* **Micro-Perforated Soft-Touch Grip:** Provides superior grip and comfort during every swing. 



### Top competitors comparison: [The Louisville Slugger Omaha](https://sidelineswap.com/shop/baseball/bats/louisville-slugger/omaha-2/l8755) and the [DeMarini Voodoo](https://sidelineswap.com/shop/baseball/bats/demarini/voodoo/l7333) 

Marucci CAT 8 particularly excels in its use of AZ105 alloy for durability and a thinner barrel for a higher response rate. While the Omaha and Voodoo are known for their balanced swing and innovative technology, the CAT 8 sets itself apart with its anti-vibration technology and multi-variable wall design, the cat 8 uses 8 different thicknesses of barrel wall, offering players a mix of comfort, power, and precision that is hard to beat.


### Progression of the Marucci CAT baseball bat

Here is a list that details the progression of this series, highlighting the main features and advancements with each new model.

 


**2014 **-** [CAT6](https://sidelineswap.com/shop/baseball/bats/marucci/cat-6/l7498)**



* Building on the ring-free barrel design, Marucci releases the CAT6 with an extended, optimized barrel made from the AZ3000 alloy.
* Patented anti-vibration knob takes on additional weight for a more balanced feel and faster swing speeds.

**2017 **-** [CAT7](https://sidelineswap.com/shop/baseball/bats/marucci/cat-7/l7247) & CAT7 CONNECT**



* CAT7 and CAT7 Connect are introduced, featuring the upgraded AZ4X alloy for improved performance.
* CAT7 has a one-piece alloy construction, while CAT7 Connect offers a two-piece hybrid design with a carbon composite handle.
* Both models feature an increased sweet spot and an upgraded anti-vibration knob (AV2). 


**2019 **-** [CAT8](https://sidelineswap.com/shop/baseball/bats/marucci/cat8-2/l7709), CAT8 CONNECT, CAT COMPOSITE**



* CAT8, CAT8 Connect, and CAT Composite are launched.
* The barrels of CAT8 and CAT8 Connect are constructed using the new AZ105 alloy for higher performance at the sweet spot.
* Introduction of SDX EXT connection technology for a stiffer connection and improved energy transfer.
* CAT Composite, a two-piece composite bat, is introduced with SDX EXT and ring-free barrel construction.


### What people are saying (edited for clarity and brevity)

**PROS**



* I am pleased to say that my son has experienced an increased exit speed and longer distances. He has noticed that the bat has an expanded sweet spot, resulting in more comfortable hits with less sting.
* My son had a few mishits but the ball still came off decently, and he mentioned that there was no vibration. I would recommend this bat, especially for younger kids who are improving their skills but still want success.
* A go-to choice when under pressure. It has a large sweet spot, providing a ton of power. The bat is also easy to swing and consistently achieves a higher exit velocity off the tee compared to a Cat9 alloy and 23' meta.

**CONS**



* I purchased the -8 version, which has a small sweet spot. The knob is great, but the grip is not as effective. 
* If you are still 11, I suggest you get the drop ten because it has a bigger sweet spot and more pop due to its smaller aluminum content. Overall, it's a nice medium-swinging -8! 
* I was unaware that this bat was the Junior version and only recommended for Coach Pitch.


### **Certification**: USA, USSSA, BBCOR 


### Expert Notes ([Tony](https://sidelineswap.com/locker/batexperts)) 

The CAT8 is an older model from 2019 and a good BBCOR and USSSA bat. Very good performing bat with a sound that players love. Lightweight and easy to swing. It's probably one of the best sellers, and since the CAT8 is still available, it's perhaps one of the better bang for the buck. Prices dropped for this older model. So, it is a good match for an entry-level player on a tight budget.

Pop: ⭐⭐⭐⭐

Durability: ⭐⭐⭐⭐

Vibration: ⭐⭐⭐⭐

 
**Balanced** or End loaded?

CAT8

# DeMarini CF Zen Baseball Bat

The DeMarini CF Zen series is a highly acclaimed line of composite baseball bats known for their light swing weight and exceptional balance. The DeMarini CF Zen is engineered with Paraflex Plus Composite material for players who demand a bat that can keep up with their high level of play. The DeMarini CF Zen offers exceptional flexibility, durability, and a massive sweet spot. Founded in 1989, DeMarini has emerged as an innovative designer for baseball bats at every level. 


**Perfect bat for**: Ideal for hitters who seek to maximize their swing speed without sacrificing control. 



### Key features include: 




* **Paraflex Plus Composite Barrel:** Engineered for consistent responsiveness and a huge sweet spot, delivering maximum pop.
* **3Fusion Connection:** Reduces vibration for a comfortable feel while redirecting energy back into the barrel for improved performance.
* **ReAction End Cap:** Increases barrel performance without sacrificing swing speed, enhancing the bat's overall balance.
* **Balanced Swing Weight:** Optimizes bat speed and control, making it easier for hitters to meet and drive the ball.
* **Two-piece Composite Construction:** Offers an ideal combination of weight, balance, and flexibility, promoting a more efficient swing path. 



### Top competitors comparison: [Louisville Slugger Meta](https://sidelineswap.com/shop/baseball/bats/louisville-slugger/meta/l59403) and the [Rawlings Quatro Pro](https://sidelineswap.com/shop/baseball/bats/rawlings/quatro-pro/l10010)

The DeMarini CF Zen differentiates itself from competitors like the Louisville Slugger Meta and the Rawlings Quatro Pro with its innovative Paraflex Plus Composite material and 3Fusion Connection technology, providing a unique blend of flexibility, balance, and reduced vibration. While the Meta is known for its EKO Composite barrel and premium feel, and the Quatro Pro boasts a four-piece composite design for maximum power, the CF Zen excels in delivering a balanced swing weight and enhanced barrel performance, making it a top choice for athletes who value precision along with power. 



### Evolution of the CF Zen Series 

Here is a list that details the progression of this series, highlighting the main features and advancements with each new model. 


**2016 - [CF Zen](https://sidelineswap.com/shop/baseball/bats/demarini/cf-zen-2020/l8432) (Initial Release)**
- Introduced the Paraflex Composite for a more responsive barrel and better weight distribution. 
- 2-piece composite design with D-Fusion 2.0 handle to reduce vibration and redirect energy back into the barrel. 
 
**2017 - [CF Zen](https://sidelineswap.com/shop/baseball/bats/demarini/cf-zen-2020/l8432) (Update)**
- Enhanced Paraflex Composite for even greater flexibility and durability. 
- Refined D-Fusion 2.0 handle technology to further dampen hand sting on mis-hits. 
- New Low Pro end cap to optimize balance and maintain barrel integrity. 
 
 
 

**2020 - [CF Zen (BBCOR)](https://sidelineswap.com/shop/baseball/bats/demarini/cf-zen-2020/bat-type-bbcor/l211796)**
- Applied the latest Paraflex Plus Composite for a lighter, more responsive barrel. 
- 3Fusion Connection technology optimized to redirect energy into the ball for explosive performance while minimizing hand sting. 
- Redesigned end cap (ReAction End Cap) to increase barrel performance and swing speed. 
 
**2021 - [CF Zen](%28https://sidelineswap.com/shop/baseball/bats/demarini/cf-zen-2020/l8432%29) (Latest Model)**
- New Paraflex Plus Composite delivers the perfect combination of balance and power. 
- Improved 3Fusion Connection and ReAction End Cap for enhanced feel, performance, and swing speed. 
- Attention to detail in material consistency for increased durability and performance across all pitch speeds. 


### What people are saying (edited for clarity and brevity)

**PROS**



* Good bat, with less pop than 1-piece aluminum. Ideal for singles with a lighter swing weight. Composite material, so have 2 bats for high competition.
* My son is 11 years old. I was worried he would struggle to swing a 30/20 bat this year, considering he used a 29/19 bat last year. However, this bat is amazing! It is hot right out of the wrapper. I wouldn't even think about using another bat this year; this one is perfect.
* This is the best overall USA bat on the market. It has decent pop and great balance, making it a high-quality option.

**CONS**



* "The bat developed cracks in the sweet spot from regular use during batting practice. After six months, the cracks grew larger until there were two major ones, resembling a cave-in."
* Bat has pop but I've had a couple of friends crack this same bat after 4 games.
* Bought it for my son, 2nd time he used it, it cracked. He only hit league baseballs with it in warm weather.


### **Certification**: BBCOR, USSSA, USA


### Expert Notes ([Tony from BatExperts](https://sidelineswap.com/batexperts))

The CF Zen has been discontinued. The early models from 2017 - 2021 were called CF Zens. After that, DeMarini changed the name to CF. The first models of the CF Zen were very high-performance. But they also tended to break, so DeMarini made them stronger, made them stiffer, made them more durable. And when they did that, the bats didn't hit as well. The early models were better performers than the later models. 


Pop: ⭐⭐⭐⭐

Durability: ⭐⭐⭐

Vibration: ⭐⭐⭐⭐

 
**Balanced** or End loaded?

Category	Baseball > Bats
Brand	Louisville Slugger Baseball BatsLouisville Slugger
Model	Louisville Slugger Prime 919 BatPrime 919
Length	30" Baseball Bats30"
Bat Certification	USABat Certified
Drop	(-10) Baseball Bats-10
Weight	20 oz Baseball Bats20OZ
Condition	Used
Barrel	2 5/8"
Bat Material	Composite Baseball BatsComposite
Release Year	2019 Baseball Bats2019

Similar Listings

Used Composite (-10) 20 oz 30" Prime 919 Bat