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. FEATURES: Minimalist design. 5-position adjustable. Includes 7075 mil-spec carbine receiver extension. Integral, ambidextrous QD sling socket. ATF compliant, US veteran designed and proudly made in the USA. Product includes: brace, mil-spec carbine receiver extension, adjustable nylon strap.