Six Position Tube For M4 Type Stocks
Mil-spec receiver extension tube with a 1.148″ outside diameter. Allows easy install of an adjustable mil-spec carbine stock. Will fit any mil-spec stock. Allows easy conversion of a fixed A2 style stock to an adjustable stock.
Six positions allows a customizable length and secure locking fit. Precision machined from 7075 aluminum to be strong and lightweight. Black hard-coat anodized with a hard, wear-resistant matte black finish.