Phase 5 Weapon Systems Inc Littleboy Hex Brake - 7.62X51 / .308 / 300Blk - 5/8 X 24 Tpi Black LITTLEBOY-5/8-24. Including 1 large (FAT) ventilated baffle section and chamber to create the compensation needed to reduce the overall recoil felt by the shooter. The design of the littleBOY Hex Brake allows the chamber wall to sit as close to the barrel crown plane as possible. This design element was included to maintain the full accuracy of the barrel. The iconic Phase 5 Hex design gives the littleBOY Hex Brake the perfect styling that custom gun builders are looking for. Specifications for Phase 5 Weapon Systems Inc Littleboy Hex Brakes: Manufacturer: Phase 5 Weapon Systems Inc Color: Black Finish: Parkerized Length: 2.5 in Condition: New Features of Phase 5 Weapon Systems Inc Littleboy Hex Brakes Mil-Spec Black Parkerized finish - Compatibility: 7.62x51 / .308 / 300BLK - Length: 2.5 - Width: 1.26 - Weight: 5.0oz - Threading: 5/8 x 24 TPI (Threads per Inch) - Includes (1) crush washer APPROX. 0.85 FROM BARREL CROWN WITH CRUSH WASHER INSTALLED Package Contents: Phase 5 Weapon Systems Inc Littleboy Hex Brakes Crush washer Phase 5 Weapon Systems Inc LITTLEBOY-5/8-24: Littleboy Hex Brake - 7.62X51 / .308 / 300Blk - 5/8 X 24 Tpi Black