2027 Marucci RCKLESS Gen 2 JBB Comp (-10) 2 3/4" USSSA Baseball Bat: MJBBRC2

The Marucci RCKLESS Comp JBB -10 USSSA Baseball Bat is built for hitters who want pure speed, explosive barrel response, and a smooth two-piece composite feel from the first pitch. No loading screens. No warm-up lap. Just a mid-loaded USSSA bat designed to help players swing fast, play bold, and keep the scoreboard moving.

Built with a FLEX Composite Barrel, the RCKLESS Comp JBB delivers maximum barrel flex, extreme responsiveness, and an explosive sound on contact. The barrel is designed to create a wider sweet spot with consistent performance across the hitting surface, giving hitters more confidence to attack pitches and stay aggressive in the box.

The OLS Connection creates an extremely stiff connection while helping reduce vibration on contact, giving players a strong and smooth swing feel. Paired with the PFX Composite Handle, which is engineered by weight drop to enhance swing speed, power, and feel, this bat is built to bring comfort and performance together.

Finished with Ring-Free Barrel Construction, a TFX Endcap, Custom-Molded Hand Taper, Optimized Knob Design, and an Enhanced Soft-Touch 1.75mm Grip, the Marucci RCKLESS Comp JBB USSSA bat is made for hitters who want fast hands, effortless power, and all-game comfort.

• -10 Length to Weight
• Two-piece composite construction for a smooth, responsive swing feel
• Mid-loaded barrel for effortless power without sacrificing swing speed
• 2 3/4” barrel diameter
• FLEX Composite Barrel for maximum barrel flex and extreme responsiveness
• Fiber Layered Energy Exchange designed for explosive sound and barrel response
• OLS Connection creates a stiff connection while helping reduce vibration on contact
• PFX Composite Handle engineered by weight drop to enhance swing speed, power, and feel
• Ring-Free Barrel Construction allows more barrel flex with no dead spots
• TFX Endcap helps add flex on distal impacts and soften mishits
• Custom-Molded Hand Taper designed by weight drop for better fit, control, and feel
• Optimized Knob Design shaped by weight drop for improved comfort in the hands
• Enhanced Soft-Touch 1.75mm Grip for comfort and control
• Certification: USSSA 1.15 BPF
• One Year Manufacturer Warranty Included

FAQ

Who is the Marucci RCKLESS Comp JBB USSSA best for?
This bat is built for USSSA hitters who want a two-piece composite bat with a mid-loaded swing feel, fast barrel speed, and explosive responsiveness.

Is the RCKLESS Comp JBB balanced or end loaded?
The RCKLESS Comp JBB has a mid-loaded barrel, giving hitters added power through the zone while still keeping the swing quick and manageable.

What does the FLEX Composite Barrel do?
The FLEX Composite Barrel is designed for maximum barrel flex, extreme responsiveness, and an explosive sound on contact.

What is the OLS Connection?
The OLS Connection creates a stiff connection between the barrel and handle while helping reduce vibration for a smoother feel.

Is this bat USSSA certified?
Yes. The Marucci RCKLESS Comp JBB is USSSA 1.15 BPF certified.