The SBM4 Pistol Stabilizing BraceA(R) is the evolution of the original SB15(TM). Thinner, lighter and with enhanced cheek weld ergonomics. The SBM4 provides increased stability, improved accuracy and usability. Features: ATF compliant, US veteran designed and proudly made in the USA Product Includes: brace, adjustable nylon strap Specifications: FIT: All platforms equipped with an AR-style pistol buffer tube DIAMETER COMPATIBILITY: 1.1-1.25 in LENGTH: 7.2 in STRAP WIDTH: 1 in WEIGHT: 8.4 oz COLOR: Black WIDTH [MAX]: 2.1 in