A Rookie of the Year, an All-Star appearance and a Silver Slugger - all before the age of 23. Ronald Acuna Jr. and his MLB Prime Signature Series RA13 are ready to add to that already impressive resume. Pairing an AJ10 handle and I13 barrel with a flared knob, this high-gloss black handle and natural barrel bat is nothing short of flawless.

The MLB Prime Signature Series lineup offers all players a chance to step up to the plate with bats big league stars swing. Through extensive conversations and collaboration with our MLB All-Stars and Most Valuable Players, the Louisville Slugger product team has developed a line of MLB Prime bats built to exact player specifications. These models, featuring the same extraordinary components of all MLB Prime bats, bring the bright lights to any ball field. From knob to cup, the features on MLB Prime bats are unmatched – something the best players in the world recognize. Each of our Signature Series and MLB Prime bats feature an easy-to-read knob medallion embedded in the knob that indicates the MLB Prime grade of wood, the species and the length, with the bat name and production date engraved in the surrounding area. These bats also feature a Craftsman-Style Cup, created specifically to curb breakage and maintain hardness on contact. To give these bats an unparalleled look and feel, all MLB Prime models are coated with our EXOPRO finish, which creates a beautiful mirror-like appearance and unmatched level of hardness. Seamless Decals on the center, end and back brands blend into the bat almost as intricately as the grain itself. All in all, MLB Prime bats are the finest Louisville Slugger bats created in over a century of craftsmanship. This is MLB Prime. This is Louisville Slugger.

• EXOPRO: Gives you a finish you can feel in an incredibly durable top coat that not only drastically increases surface hardness, but gives you a mirror-like finish in high-gloss models, elevating the color and grain definition of the bat.
• Knob Medallion: Easy-to-read medallions have been embedded in the knob, clearly show the identifying characteristics of your bat and replacing outdated etching that has been previously used. The medallion indicates the MLB Prime grade of wood, the species and the length, while the bat name is engraved in the surrounding area.
• Seamless Decals: Louisville Slugger’s exclusive Seamless Decals are applied directly under the top coat, giving MLB Prime bats a pristine look. All MLB Prime models feature branding that blends into the bat almost as intricately as the grain of the wood itself – without added stress from pressure and heat. Thanks to this innovative technology, MLB Prime bats continue to shine after countless trips to the plate.
• Craftsman-Style Cup: Our completely re-engineered Craftsman-Style Cup features a thicker width edge along the end of the barrel, lending added strength and durability to the end of the bat to help reduce chipping and cracking.
• Bone Rubbed
• Color: Hardline - Black to Natural

RONALD'S BAT SPECS

Ronald Acuna Jr.'s RA13 Signature Series bat is a unique turn, pairing an AJ10 handle and I13 barrel with a flared knob. It's designed with a high-gloss black handle and natural barrel.

It is a '4' (Slightly End Loaded) on the Swing Weight Scale.

MLB MAPLE

Preferred by more than 70 percent of Major League players, Maple bats are known for their surface hardness, unmatched sound and solid feel upon contact. The closed grain structure of the Maple wood lends itself to a more durable surface strength and stiffer feel. 

Maple in MLB: Cody Bellinger, Christian Yelich, Didi Gregorius, Ronald Acuna, Eloy Jimenez, Curtis Granderson, Ian Happ, Ryan Zimmerman, Brian Dozier, Zack Cozart, Brandon Belt, Charlie Culberson, Adam Frazier, Aaron Hicks, Jose Peraza, Ryan McMahon

KNOB MEDALLION

Easy-to-read medallions have been embedded in the knob, clearly show the identifying characteristics of your bat and replacing outdated etching that has been previously used. The medallion indicates the MLB Prime grade of wood, the species and the length, while the bat name is engraved in the surrounding area.

On Signature Series models, the engraving around the medallion features the name of the MLB player for whom the game model is made. 

SEAMLESS DECALS

Louisville Slugger’s exclusive Seamless Decals are applied directly under the top coat, giving MLB Prime bats a pristine look. All MLB Prime models feature branding that blends into the bat almost as intricately as the grain of the wood itself – without added stress from pressure and heat. Thanks to this innovative technology, MLB Prime bats continue to shine after countless trips to the plate.

END BRAND

A condensed appearance adds the finishing touch to the 2021 MLB Prime lineup end brand, giving these bats an even cleaner, high-end look.

The end brand for Signature Series bats features the signature of the player for whom the game model bat was made.

CRAFTSMAN STYLE CUP

Our completely re-engineered Craftsman-Style Cup features a thicker width edge along the end of the barrel, lending added strength and durability to the end of the bat to help reduce chipping and cracking.

EXOPRO FINISH

The 2021 MLB Prime lineup features our revolutionary EXOPRO finish that’s twice as hard as the previous EXOARMOR. This latest innovation in wood bat technology gives you a finish you can feel in an incredibly durable top coat that not only drastically increases surface hardness, but gives you a mirror-like finish in high-gloss models, elevating the color and grain definition of the bat. EXOPRO delivers what you’ve always wanted – a wood bat that feels as good as it looks. 

MLB INK DOT

Louisville Slugger ink-dotted bats are the highest quality wood bats in the game. Every maple and birch PRIME bat that meet slope-of-grain carries the Ink Dot and are approved for play in Major League Baseball.