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Marucci CAT8 -10 Junior Big Barrel Baseball Bat: MJBBC8BG Quantity
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  • Free Shipping!

  • 2 3/4 Inch Barrel Diameter

  • Drop 10 Length to Weight Ratio

  • Balanced Swing Feel

  • One-Piece, All-Alloy Baseball Bat

  • Features USSSA BPF 1.15 Certification

  • Colorway: Black | Grey | Gold (JustBats Exclusive Color Design)

  • AZ105 Alloy - The Strongest Aluminum On The Marucci Bat Line, Allows For Thinner Barrel Walls, A Higher Response Rate And Better Durability

  • Multi-Variable Wall Design Creates An Expanded Sweet Spot And Thinner Barrel Walls That Are More Forgiving After Off-Centered Contact

  • Ring-Free Barrel Construction Allows For More Barrel Flex And Increases Performance With No Dead Spots

  • Precision-Balanced Barrel Results In A Lower M.O.I. And Balanced Feel For Precision And Control

  • 2nd Generation AV2 Anti-Vibration Knob Features An Upgraded, Harmonic Dampening System For Better Feel And Less Negative Vibrational Feedback

  • Micro-Perforated Soft-Touch Grip With Extra Tack Improves Feel And Control

  • Full Twelve (12) Month Manufacturer's Warranty

Marucci Cat 8 -10 Junior Big Barrel Baseball Bat: MJBBC8BG 

Watch their confidence soar when they step up to the plate swinging this junior big barrel bat. Precision-balanced, with a soft-touch grip and an extra-large sweet spot, this Marucci Cat 8 junior bat starts youth players off with a bang.

Bat Benefits

Thin aluminum barrel walls create a higher response rate and help turn off-center ball contact into solid hits. With a second-generation AV2 knob, this junior baseball bat has an improved dampening system that reduces vibration, so hands are comfortable hit after hit. Coach-pitched players may still be learning swing basics, and the one-piece aluminum alloy construction helps them develop a stable, consistent follow-through.


Marucci helps make sure your child's baseball season is uninterrupted by offering a 12-month manufacturer's warranty. Order a Cat 8 big barrel bat today and let them experience the thrill of contact.

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Have a question about the Marucci CAT8 -10 Junior Big Barrel Baseball Bat: MJBBC8BG? Ask our team of experts and they will respond within 24 hours.

Is the Marucci Cat 8 -10 Junior Big Barrel Baseball Bat a coach pitch bat only?
Donna dehaven
This bat is recommended for coach pitch only. If a player is using this bat after coach pitch it is more likely to break.
What is the physical difference between the Cat8 Junior Big Barrel (MJBBC8BG) and the Cat8 USSSA (MSBC810BG)?
Erik Estes
The main difference is Junior Big Barrel bats are intended for coach pitch and machine pitch only, while Senior League or Youth Big Barrel models are meant for kid pitch. Junior Big Barrel bats have slightly thinner barrel walls that will wear down when facing kid pitch velocities.
What is the difference between the black Marucci Cat 8 and the Posey28? Looking to switch from my sons Cat 7s, he says vibration is starting to hurt. Thank you for your time
Josh Andrews
There is no major difference outside of the color design. Both use Marucci's AZ105 alloy, 2nd Gen AV2 knob, Multi-Variable wall design and other features.
No results. If you searched for a specific term, please broaden your search. If you have already done this and still cannot find what you're looking for, please submit your question and we'll get back to you within 24 hours. Thanks!

At Marucci, they make their products the same way you play baseball: Hard work, determination, and attention to detail. This product is handcrafted. We are committed to never releasing a product before it meets the standard set forth by our wood bat. Our process is proven. The only way to achieve perfection is to accept nothing else. We first have gloves to Big Leaguers in our inner circle to break in and critique - knowing the extreme situations they would be put in. Players like Chase Utley allowed us to comprehend what a player needs and looks for in an ideal fielding glove. The Marucci player advisory board was integral in testing, tweaking, and ulitmatley perfecting the glove line to have the feel and features that matter to players. Understanding this professional standard of perfection has allowed us to handcraft a performance product that will last consistently maximize your game. Handcrafted, one by one, with the highest quality materials, for superior quality and feel, these gloves will require a gradual break-in period which provides a longer lasting form and shape. Professionally Inspired. Precision Crafted. Marucci: Honor the Game.

Marucci CAT8 -10 Junior Big Barrel Baseball Bat: MJBBC8BG
Approved For USSSA
Barrel Diameter 2 3/4
Baseball Bats Coach Pitch
Bat Construction One-Piece
Bat Type Baseball
Color Black Gold Grey
Deals Personalization Eligible Exclusive Bats
Length to Weight Ratio -10
Material Aluminum
Price $100 - $199.99 $150 - $199.99 $200 - $299.99 $200 - $249.99
Series CAT CAT8
Swing Weight Balanced
Vendor Marucci
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