Comfort And Quality From B5 Systems B5 Systems has made a name for itself by creating high quality replacement parts for the AR-15 platform. Pistol Grips are the latest addition to the B5 Systems line up. These particular pistol grip features a reinforced design which makes it almost impervious to the elements. A reduced grip angle promotes less pressure on the wrist for an improved ergonomic feel. Add some B5 systems accessories to dress up your favorite AR-15 rifle. Specifications and Features: B5 Systems Item: PGR1134 Collapsible Stock Reduced Grip Angle More Ergonomic Than Standard AR-15 Grips Constructed From High Impact Polymer OD Green Made In The USA Fits: All Mil-Spec AR-15 receiver extensions buffer tubes.