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Marucci CAT9 -10 USSSA Junior Big Barrel Baseball Bat: MJBBC9GS 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 (New NTS Tested) Certification Stamp

  • Designed For Use In Coach Pitch Or Machine Pitch Play. Not Intended To Hit Baseballs Thrown Harder Than 40-45 MPH.

  • Colorway: Silver | Gold | Black (JustBats Exclusive Colorway)

  • AZR Alloy - Undergoes A 3-Stage Thermal Treatment Process. Creates A More Responsive Microstructure That Results In A Better Feel, More Forgiveness & More Performance. It Does All This While Maintaining The Strength Of The Material.

  • 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 CAT9 -10 USSSA Junior Big Barrel Baseball Bat: MJBBC9GS

Shop for a coach pitch or machine pitch bat that has a unique swagger to it. Grab this CAT9 that features a paint job only found at JustBats!

Bat Benefits

The CAT9 is a true stalwart within the world of USSSA Baseball. It has a 1-piece, all-alloy design, and specifically, the bat is going to be made from Marucci's AZR Alloy material. Marucci gets after it when designing the alloy for their bats and this AZR material is no exception. The alloy undergoes a 3-stage thermal treatment process that ultimately produces a bat with a better feel, more forgiveness and more performance. 

As well, Marucci bucks the common thought that a one-piece bat is going to sting the batter's hands on a miss-hit. They have built this CAT9 with their AV2 anti-vibration knob and it keeps nearly all vibrations out of the handle of the bat. When a player swings this one-piece bat, they'll get to enjoy the stiff feel at contact with the baseball. As well, they'll enjoy a sting-free experience that is just as good as what is felt when using multi-piece bats.

This bat will be a Junior Big Barrel model. Therefore, it is going to have the USSSA stamp and feature the largest-allowed 2-3/4" barrel diameter. It is really only designed for coach pitch and machine pitch leagues where pitch speeds do not exceed 40-45 mph. We would really recommend avoiding kid pitch leagues with this bat. If there is a pitcher who can toss it a little harder, the bat could be at risk of breaking down.


In the last decade, Marucci has come on strong and established itself as a true force within the baseball bat market. An integral part of becoming that force is their care for customers. To exemplify that care, they extend a twelve (12) month manufacturer’s warranty period on this bat. If you purchase the bat from JustBats and a warranty issue arises within 12 months of the purchase date, please let the JustBats Bat Experts know. The Experts are trained in product and warranty knowledge. They will be able to get you the info that you need to initiate a warranty replacement process with Marucci.

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Have a question about the Marucci CAT9 -10 USSSA Junior Big Barrel Baseball Bat: MJBBC9GS? Ask our team of experts and they will respond within 24 hours.

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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 CAT9 -10 USSSA Junior Big Barrel Baseball Bat: MJBBC9GS
Approved For USSSA
Barrel Diameter 2 3/4
Baseball Bats Coach Pitch
Bat Construction One-Piece
Bat Type Baseball
Color Black Gold Silver
Deals Exclusive Bats Personalization Eligible
Length to Weight Ratio -10
Material Aluminum
Price $200 - $299.99 $200 - $249.99
Series CAT CAT9
Swing Weight Balanced
Vendor Marucci
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