1. Baseball
  2. Bats
  3. 31.5OZ

31.5 oz Baseball Bats

Shop by Bat Certification

42 Results
Shop by Category

Resell & Save Even More

Earn hundreds when you list your gear for sale, or trade-in and drop off at a local partner.

List Your GearTry Trade-in
2026 DeMarini The Goods Hybrid BBCOR Certified Bat (-3) (New)
GloveSwap
2026 DeMarini The Goods Hybrid BBCOR Certified Bat (-3) (New)
$323$35910% OFF
19% PRICE DROP
Retail price: $450
Victus Bat (-3) 31.5 oz 34.5" (New)
Eli_Crump
Victus Bat (-3) 31.5 oz 34.5" (New)
$253$29815% OFF
28% PRICE DROP
American Batsmith RA13 Ronald Acuna Game Model Maple Bat 31.5 oz 34" (Used)
CatchingDeals
American Batsmith RA13 Ronald Acuna Game Model Maple Bat 31.5 oz 34" (Used)
$100
Retail price: $189
New KR3 PRO Maple Woodsman AX Bat 34 inch Wood Bat (-3) 31.5 oz
NWIBLSideline Pro+
New KR3 PRO Maple Woodsman AX Bat 34 inch Wood Bat (-3) 31.5 oz
$159
Retail price: $199
KR3 PRO RC22 Ultra Eagle Magnum 34 inch composite Wood Bat (-3) 31 oz RC22
NWIBLSideline Pro+
KR3 PRO RC22 Ultra Eagle Magnum 34 inch composite Wood Bat (-3) 31 oz RC22
$225
Retail price: $249
2021 Demarini The Goods 34.5/31.5 (-3) BBCOR Baseball Bat
dylanjohSideline Pro
2021 Demarini The Goods 34.5/31.5 (-3) BBCOR Baseball Bat
$400
New 2025 Katana i13 Euro Beech 34 inch Wood Bat (-3) 30.5 oz
NWIBLSideline Pro+
New 2025 Katana i13 Euro Beech 34 inch Wood Bat (-3) 30.5 oz
$135
Retail price: $179
SOLD OUT New KR3 PRO 243 Eagle Magnum 34 inch Wood Bat características de El modelo Eagle Magnum C24
NWIBLSideline Pro+
SOLD OUT New KR3 PRO 243 Eagle Magnum 34 inch Wood Bat características de El modelo Eagle Magnum C24
$300
Retail price: $230
KR3 PRO I13 Eagle Magnum Torpedo Bat High Density Maple 34 inch Wood Bat (-3) 31.5 oz
NWIBLSideline Pro+
KR3 PRO I13 Eagle Magnum Torpedo Bat High Density Maple 34 inch Wood Bat (-3) 31.5 oz
$225
Retail price: $255
Rawlings Wood Bat 2019 All Star Game Used (Carlos Santana)
Chriswilliamsjr
Rawlings Wood Bat 2019 All Star Game Used (Carlos Santana)
$131$14510% OFF
23% PRICE DROP
Katana Euro Beech 34 inch Wood Bat (-3) 31.5 oz B243
NWIBLSideline Pro+
Katana Euro Beech 34 inch Wood Bat (-3) 31.5 oz B243
$135
Retail price: $189
New KR3 Maple Magnum 34 inch Wood Bat (-3) 31.5 oz C271
NWIBLSideline Pro+
New KR3 Maple Magnum 34 inch Wood Bat (-3) 31.5 oz C271
$229
Retail price: $279
KR3 M110 Canadian Rock Maple 34 inch Wood Bat (-3) 31.5 oz Torch Finished
NWIBLSideline Pro+
KR3 M110 Canadian Rock Maple 34 inch Wood Bat (-3) 31.5 oz Torch Finished
$159
Retail price: $179
New 34 inch M243 EXIS Maple Composite Wood Bat (-2.5) 6 Mo. Warranty BBCOR.50
NWIBLSideline Pro+
New 34 inch M243 EXIS Maple Composite Wood Bat (-2.5) 6 Mo. Warranty BBCOR.50
$169
Retail price: $239
KR3 PRO I13 Torpedo Gold Series Bat High Density Maple 33.5 inch Wood Bat (-3) 30.5 oz
NWIBLSideline Pro+
KR3 PRO I13 Torpedo Gold Series Bat High Density Maple 33.5 inch Wood Bat (-3) 30.5 oz
$196
Retail price: $245
New C243XL KR3 Maple Magnum 34 inch Composite Wood Bat (-3) 30.5 oz C243XL
NWIBLSideline Pro+
New C243XL KR3 Maple Magnum 34 inch Composite Wood Bat (-3) 30.5 oz C243XL
$249
Retail price: $279
KR3 PRO 243 Ultra Eagle Magnum 34 inch Composite Wood Bat (-3) 31.5 oz C243
NWIBLSideline Pro+
KR3 PRO 243 Ultra Eagle Magnum 34 inch Composite Wood Bat (-3) 31.5 oz C243
$225
Retail price: $249
Louisville Slugger Wood Bat with 1999 World Series Logo
L_and_M
Louisville Slugger Wood Bat with 1999 World Series Logo
$50
2025 Rawlings Mach AI Alloy BBCOR Certified Bat (-3) 34”31oz
kassports3
2025 Rawlings Mach AI Alloy BBCOR Certified Bat (-3) 34”31oz
$89
B45 Premium B110 Yellow Birch 33.5”
woodycc
B45 Premium B110 Yellow Birch 33.5”
$145
Retail price: $190
Old Hickory i13 Pro Maple Wood Bat 33.5" (New)
Tcraig3
Old Hickory i13 Pro Maple Wood Bat 33.5" (New)
$120
Max Bat WM9 Pro Maple Wood 33.5
Tcraig3
Max Bat WM9 Pro Maple Wood 33.5
$135
Used Marucci Alloy CAT 8 Bat (-3) 31.5 oz 33.5"
Ballplayer82036
Used Marucci Alloy CAT 8 Bat (-3) 31.5 oz 33.5"
$90$10010% OFF
36% PRICE DROP
2022 DeMarini Voodoo One Alloy BBCOR Certified Bat (-3) 31.5 oz 34" (Used)
Gavsmitg27
2022 DeMarini Voodoo One Alloy BBCOR Certified Bat (-3) 31.5 oz 34" (Used)
$85
Professional baseball Bat 33.5" and 34” Used)
Kolemanl_8
Professional baseball Bat 33.5" and 34” Used)
$400
2024 Training Bat Wood 31.5 oz 33.5" (Used). Player Issued Pro Ball
CarlyleS1
2024 Training Bat Wood 31.5 oz 33.5" (Used). Player Issued Pro Ball
$170
Old Hickory Pro Maple 1739S Custom Pro Bat 31.5 oz 33.5"
Seaver55
Old Hickory Pro Maple 1739S Custom Pro Bat 31.5 oz 33.5"
$50
Sam Bat AG24 34/31
wiley19
Sam Bat AG24 34/31
$125
Marucci CATX Alloy BBCOR Certified Bat (-3) 31.5 oz 32.5" (Used)
Mjnunzio
Marucci CATX Alloy BBCOR Certified Bat (-3) 31.5 oz 32.5" (Used)
$69
Retail price: $349
Bo Bichette Pro Issue Bat
ElTigre
Bo Bichette Pro Issue Bat
$165
MLB Game Used Hunter Goodman Old Hickory 28NA Bat 31.5 oz 34" (Used)
jrg1018
MLB Game Used Hunter Goodman Old Hickory 28NA Bat 31.5 oz 34" (Used)
$180