Designed for all platforms capable of accepting a mil-spec carbine receiver extension, the SBA3 is 5-position adjustable, dramatically enhances versatility, and features a minimalist design with an integral, ambidextrous QD sling socket. The SBA3 is compatible with any mil-spec carbine receiver extension (not included). Minimalist design 5-position adjustable Integral, ambidextrous QD sling socket US veteran designed and proudly made in the USA Product Includes: Brace, Adjustable nylon strap Fit: All platforms capable of accepting a mil-spec carbine extension Cavity Depth: 6.0" Length: 6.75", 7.6", 8.25", 8.75" 9.5" Strap Width: 1.0" Weight: 6.75 oz Color: Black, FDE, OD Green, Stealth Gray Width [max]: 1.8"