A low-profile, left side-folding, strut design compatible with all platforms utilizing an M1913 (Picatinny) interface at the rear of the receiver. The FS1913(TM) is a complete assembly a solid lock-up when extended. Features Advanced steel hinge design locks in both folded and extended positions Offered with a light-weight polymer (FS1913) or 6061 aluminum (FS1913A) strut US veteran designed and proudly made in the USA Product Includes: Complete assembly, Adjustable nylon strap Specifications Fit: Platforms with m1913 interface at rear of receiver Width [max]: 1.2? Length: 9.6? (FS1913) / 9.25? (FS1913a) Strap width: 1.0? Weight: 10.0 oz (FS1913) / 13.0 oz (FS1913a) Color: Black