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31" Baseball Bats - Page 6

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2019 Louisville Slugger Solo 619 Bat USSSA Certified (-10) Alloy 21 oz 31"
blowout_bargainsSideline Pro+
2019 Louisville Slugger Solo 619 Bat USSSA Certified (-10) Alloy 21 oz 31"
$26$3015% OFF
15% OFF
Retail price: $200
Marucci CAT Composite (2 3/4") USSSA Bat 2019 (-10)
blowout_bargainsSideline Pro+
Marucci CAT Composite (2 3/4") USSSA Bat 2019 (-10)
$18$2115% OFF
15% OFF
Retail price: $350
Marucci CAT Composite Bat (-5) 26 oz 31" (Used)
TJenn12
Marucci CAT Composite Bat (-5) 26 oz 31" (Used)
$51$6015% OFF
15% PRICE DROP
2019 Easton Ghost X Evolution Composite USABat Certified Bat (-10) 20 oz 30" (Used)
mmccann1123
2019 Easton Ghost X Evolution Composite USABat Certified Bat (-10) 20 oz 30" (Used)
$80
Retail price: $250
2019 Marucci Posey28 USSSA Bat (-10) 20 oz 30"
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2019 Marucci Posey28 USSSA Bat (-10) 20 oz 30"
$29$3415% OFF
15% OFF
2019 DeMarini CF Zen Composite USSSA Certified Bat (-5) 25 oz 30" (Used)
mbarzantny
2019 DeMarini CF Zen Composite USSSA Certified Bat (-5) 25 oz 30" (Used)
$55
Used USSSA Certified Marucci CAT 8 Alloy Bat -10 21OZ 31"
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Used USSSA Certified Marucci CAT 8 Alloy Bat -10 21OZ 31"
$32$3815% OFF
15% OFF
Used 2019 BBCOR Certified Easton Project 3 Alpha Composite Bat -3 28OZ 31"
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Used 2019 BBCOR Certified Easton Project 3 Alpha Composite Bat -3 28OZ 31"
$43$5015% OFF
15% OFF
Retail price: $250
Used USSSA Certified Adidas Aero Burner Comp (30") Composite Baseball Bat - 20 oz (-10)
blowout_bargainsSideline Pro+
Used USSSA Certified Adidas Aero Burner Comp (30") Composite Baseball Bat - 20 oz (-10)
$36$4315% OFF
15% OFF
2019 Marucci CAT8 Alloy USSSA Certified Bat (-10) 21 oz 31" (Used)
Yankeedad
2019 Marucci CAT8 Alloy USSSA Certified Bat (-10) 21 oz 31" (Used)
$27
2019 Rawlings Savage USSSA Certified Bat (-10) 20 oz 30" (Used)
EB2011
2019 Rawlings Savage USSSA Certified Bat (-10) 20 oz 30" (Used)
$9$1015% OFF
43% PRICE DROP
Retail price: $50
Marucci CAT Composite Bat (-10) 21 oz 31" (Used)
Petersfam7
Marucci CAT Composite Bat (-10) 21 oz 31" (Used)
$45
Retail price: $150
2019 Louisville Slugger BBCOR Certified Meta (-3) Composite 28 oz 31" (Used)
STXBASEBALL
2019 Louisville Slugger BBCOR Certified Meta (-3) Composite 28 oz 31" (Used)
$333
2019 Marucci CAT8 Alloy USSSA Certified Bat (-10) 20 oz 30" (Used)
JakeO02
2019 Marucci CAT8 Alloy USSSA Certified Bat (-10) 20 oz 30" (Used)
$30
2019 Marucci CAT8 Alloy BBCOR Certified Bat (-3) 28 oz 31" (Used)
Dfrisina71
2019 Marucci CAT8 Alloy BBCOR Certified Bat (-3) 28 oz 31" (Used)
$28
2019 Marucci CAT8 Alloy USSSA Certified Bat (-8) 22 oz 30" (Used)
Jphathaway76
2019 Marucci CAT8 Alloy USSSA Certified Bat (-8) 22 oz 30" (Used)
$29
2019 Rawlings Threat Composite USABat Certified Bat (-12) 19 oz 31" (Used)
SteveHill227
2019 Rawlings Threat Composite USABat Certified Bat (-12) 19 oz 31" (Used)
$45
2019 Louisville Slugger Prime 919 Composite USABat Certified Bat (-10) 20 oz 30" (Used)
SportsXchangeAZ
2019 Louisville Slugger Prime 919 Composite USABat Certified Bat (-10) 20 oz 30" (Used)
$130
Retail price: $449
30/20 Marucci Cat 8
jc1323
30/20 Marucci Cat 8
$59
Retail price: $300
2019 DeMarini CF USSSA Certified Bat (-5) Composite 26 oz 31" (Used)
emersdey79
2019 DeMarini CF USSSA Certified Bat (-5) Composite 26 oz 31" (Used)
$81
Retail price: $325
2019 Louisville Slugger Solo 619 Alloy Bat -10 20OZ 30"
blowout_bargainsSideline Pro+
2019 Louisville Slugger Solo 619 Alloy Bat -10 20OZ 30"
$25$2915% OFF
15% OFF
Retail price: $140
Used USSSA Certified 2019 Marucci CAT 8 Alloy Bat -5 26OZ 31"
blowout_bargainsSideline Pro+
Used USSSA Certified 2019 Marucci CAT 8 Alloy Bat -5 26OZ 31"
$32$3815% OFF
15% OFF
Retail price: $230
2019 DeMarini CF Zen Composite USSSA Certified Bat (-5) 26 oz 31" (Used)
CarterN11
2019 DeMarini CF Zen Composite USSSA Certified Bat (-5) 26 oz 31" (Used)
$47
Used 2019 True T1X USSSA Certified Bat (-10) Hybrid 20 oz 30"
Texasnative1
Used 2019 True T1X USSSA Certified Bat (-10) Hybrid 20 oz 30"
$35
Retail price: $89
2019 Louisville Slugger 917 USSSA Certified Bat (-10) Composite 20 oz 30" (Used)
Yvng_Tanks27
2019 Louisville Slugger 917 USSSA Certified Bat (-10) Composite 20 oz 30" (Used)
$25$3015% OFF
15% OFF
Retail price: $300
New 2019 Louisville Slugger Solo 619 USA Baseball Bat - 31 Inch/20oz.
BatsPlus
New 2019 Louisville Slugger Solo 619 USA Baseball Bat - 31 Inch/20oz.
$110
2019 USSSA Certified Bat (-5) 26 oz 31" (Used)
dingermanq
2019 USSSA Certified Bat (-5) 26 oz 31" (Used)
$20
2019 Marucci CAT8 Alloy BBCOR Certified Bat (-3) 28 oz 31" (Used)
Matthew66ol
2019 Marucci CAT8 Alloy BBCOR Certified Bat (-3) 28 oz 31" (Used)
$32
Retail price: $250
Used Easton Fuze
BeastBallers
Used Easton Fuze
$27
Retail price: $129
2019 Marucci Posey Pro Metal Alloy USSSA Certified Bat (-5) 26 oz 31" (Used)
Lawless66
2019 Marucci Posey Pro Metal Alloy USSSA Certified Bat (-5) 26 oz 31" (Used)
$30
Retail price: $230
2019 Marucci CAT8 Alloy Bat (-10) 20 oz 30"
blowout_bargainsSideline Pro+
2019 Marucci CAT8 Alloy Bat (-10) 20 oz 30"
$32$3815% OFF
15% OFF
USSSA Certified Alloy (-9) 21 oz 30" Speed Brigade Bat
Brycedub29
USSSA Certified Alloy (-9) 21 oz 30" Speed Brigade Bat
$46

Shop 31" Baseball Bats at SidelineSwap

At SidelineSwap, we provide a platform for athletes to buy and sell a wide range of 31" baseball bats, catering to every skill level. You can explore thousands of options, including new and used bats, with savings of up to 70%. Our category includes popular brands like Louisville Slugger, Marucci, and Rawlings.

Bat Certification Options

Choose from various bat certifications depending on your league requirements:

  • USSSA Certified - Ideal for youth leagues.
  • BBCOR Certified - Suitable for high school and college play.
  • USABat Certified - Meets standards for youth baseball.

Our selection features over 7,500 bats, including training and fungo bats. With fast delivery options and free shipping on select items, shopping is convenient. Additionally, our community of experts offers tips and guidance to help you make informed choices. Whether you’re upgrading your gear or starting fresh, SidelineSwap is your go-to destination for 31" baseball bats.

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