XTS 1913 Folding Buffer Tube Adapter, Black The XTS 1913 Folding Buffer Tube Adapter brings a side-folding connection to compatible rear 1913 Picatinny interfaces. The folding design allows a compatible stock or brace arrangement to take up less space for storage. The adapter is made from 7075 aluminum and has a black exterior. XTS identifies it for compatible pistol-caliber carbines with a 1913 rear mounting system and for arrangements using a collapsible stock or brace. The rear interface is the key compatibility detail: a Picatinny accessory rail elsewhere on a firearm does not establish stock-adapter fit. Key Features Mounting interface: Rear 1913 Picatinny Adapter style: Folding Construction: 7075 aluminum Specifications Brand: XTS Model: XTS-1913FLDA Color: Black Application: Compatible 1913-interface stock / brace arrangements Shop the XTS 1913 Folding Buffer Tube Adapter, Black at BattleHawk Armory.