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Get Your Custom Bat Knob Sticker for $9.99


  • Designed After Buster Posey's Game Model

  • Free Shipping!

  • Approved For Play In USSSA

  • -5 Length To Weight Ratio

  • 2 3/4 Inch Barrel Diameter

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

  • Constructed With AZ105 Alloy: The Strongest Aluminum On The Marucci Bat Line

  • Full Twelve (12) Month Manufacturer's Warranty

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

  • Multi-Variable Wall Design Creates An Expanded Sweet Spot

  • New Smoke | Black Colorway!

  • One-Piece Alloy Design Provides A Clean, Consistent, Traditional Swing

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

  • Professionally Inspired Handle Features A Removable Taper & Ergonomic Knob Shape For More Top Hand Control

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

  • Upgraded Alloy Creates Thinner Barrel Walls, Higher Response Rate & Better Durability


Marucci Posey28 Pro Metal -5 USSSA Baseball Bat: MSBP285S
Hone fundamental offensive skills with this Marucci Posey28 Pro Metal USSSA baseball bat. It's made from AZ105 alloy, one of the strongest materials available in Marucci's bat lineup.

Bat Benefits
Marucci's AZ105 alloy allows for thinner barrel walls on this bat for an improved trampoline effect when contact is made. It also provides improved durability and a higher response rate. Thinner barrel walls and its expanded sweet spot are much more forgiving during off-centered contact, useful for hitters still refining their offensive approach. This USSSA bat's anti-vibration knob helps dampen vibrations for an improved feel and comfort. Finally, this bat's professionally-inspired handle has an ergonomic shape and extra tack for improved grip and more top-hand control.

Marucci backs all of their aluminum bats with a full one-year manufacturer's warranty that provides a one-time replacement. Grab hold of this Posey28 Pro Metal baseball bat today and enjoy fast, free shipping.

Reviews (2)

Average Ratings Based on 2 Customer Reviews

Overall Rating
General Feel
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Overall Rating
General Feel
New color, better quality posey Timmy P Parent

Pros: The new color on this bat is awesome. We were surprised about the pop and how easy it was to swing.

Cons: Price point is high but well worth it

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Overall Rating
General Feel
Oh yeah! Alexander Estrada Parent

Pros: A lot of pop right away Grip and handle perfect feel Sleek gray wood-like look Unique sound on good barrel contact

Cons: End cap’s dried glue particles inside barrel make sound after first contact with baseball

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Questions and Answers (5)

Have a question about the Marucci Posey28 Pro Metal -5 USSSA Baseball Bat: MSBP285S? Ask our team of experts and they will respond within 24 hours.

How does the Marucci Posey28 -5 (MSBP285S) compare to the Marucci CAT 8 -5 (MSBC85)?
The Marucci Posey28 Pro Metal -5 USSSA Baseball Bat: MSBP285S features the same AZ105 alloy and the 2nd generation AV2 anti-vibration knob as the Marucci CAT 8 -5 USSSA Baseball Bat: MSBC85. The difference between these two option are minimal and will come down to cosmetics.
Balanced or end loaded?
The Marucci Posey28 Pro Metal -5 USSSA Baseball Bat: MSBP285S will feature a balanced swing weight.
What’s the difference between this bat and the Cat 8?
This Marucci Posey28 Pro Metal -5 USSSA Baseball Bat (MSBP285S) will be the same as the Cat 8 with the only exception being the name on paint on the 2 bats.
Does this bat have more pop than the 2020 DeMarini CF bat?
Kaden Robinson
The Marucci Posey28 Pro Metal -5 USSSA Baseball Bat: MSBP285S and the DeMarini will have a very similar performance. The biggest difference will be that the Posey28 is an alloy bat and the CF is a composite.
The description is showing a 2 3/4" barrel for the -5 bat, is this correct or is it 2 5/8"?
This model has a 2 3/4" barrel diameter.
Show all 5 Questions and Answers about the Marucci Posey28 Pro Metal -5 USSSA Baseball Bat: MSBP285S
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About the Brand

At Marucci, we make our 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.

Bat Properties

Marucci Posey28 Pro Metal -5 USSSA Baseball Bat: MSBP285S
Approved For USSSA
Barrel Diameter 2 3/4"
Baseball Bats Youth Big Barrel
Bat Construction One-Piece
Bat Type Baseball
Color Black
Deals Personalization Eligible Used
Length to Weight Ratio - 5
Material Aluminum
Price $200 - $299.99 $100 - $199.99
Swing Weight Balanced
Vendor Marucci
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