Marucci Block Party MSPBP1LU 1-PC Loaded 12.75" USSSA

BLOCK PARTY USSSA SLOWPITCH BAT – 12.75” 1PC LOADED

BUILT TO SMASH. Inspired by the iconic world of colorful building bricks, this bat delivers power you can assemble swing after swing and is made for players who love to create their own chaos.

One-Piece Composite Construction: For a clean, consistent, and traditional swing feel

Loaded Bat: Slightly end-loaded feel – balanced enough for all to swing – dangerous enough to do damage

DisRupt Mono Barrel Technology: Hot, forgiving, controlled performance with optimized comfort from a 1-piece design.

Technical Features:

• Unified Composite Matrix – Constructed from a continuous layup of high-strength carbon and advanced resin, eliminating weak points between handle and barrel.

• Layered Fiber Architecture – Multiple Impact Toughened fiber types and Unlimited fiber stacked in strategic sequences to tune stiffness and flex.
• Optimized Flex Gradient – Barrel wall transitions from stiffer zones near taper/endcap to responsive flex zones at the sweet spot, maximizing trampoline effect.
• Pre-Conditioned Composite Resin – Resin system engineered to yield slightly under early stress, creating a game-ready break-in while maintaining long-term integrity.
• Durability Shield Layer – Toughened outer layer resists microcracking and delamination from repeated high-impact loads.

Player Benefits:

• Explosive Energy Transfer – Direct, stiff 1-piece feel channels swing energy seamlessly into the barrel.
• Hot Out of the Wrapper – Advanced resin and fiber tuning allow the barrel to break in quickly, producing game-ready performance.
• Larger, More Responsive Sweet Spot – Layering technology expands the high-performance zone while reducing dead spots.
• Long-Lasting Pop – Reinforcement fibers and resin systems extend usable life without compromising performance.
• Traditional 1-Piece Feedback – Strong connection between hands and barrel provides power hitters with instant feedback and maximum force return. • Grip weight and manufacturing tolerance may cause slight deviation from the listed weight.
• • 2 1/4" barrel diameter
• • 12.75” Barrel Length
• • Mid stiff handle
• • USSSA, NSA, ISA certified
• • One year warranty included
• • Model No: MSPBP1LU

Modulated Stiffness Technology (MST): MST is our unique system that connects the barrel and handle in a way that fine-tunes how the bat flexes. By adjusting the materials in key areas, MST creates the perfect balance between flex and stiffness—giving you better energy transfer, control, and feel. The result is a bat that dynamically adapts to the player’s swing, delivering optimized performance at every point of contact.