Guntec AR-15 9 Pistol Brace Build Kit Features The Guntec USA Pistol Brace Build Kit centers on a Mil-Spec six-position buffer tube machined from T6 aluminum giving builders a durable dimensionally correct foundation for an AR-15 pistol build. The tube is compatible with SB Tactical braces letting builders pair it with their brace of choice for a complete functional pistol platform. An anodized black finish protects the aluminum from corrosion and wear while matching the look of most AR-15 pistol builds. At 9 in length the buffer tube supports the compact profile typical of pistol-length AR builds. The kit includes everything needed to complete the buffer assembly: an end plate a castle nut a 3 oz stainless steel carbine buffer and a chrome silicon spring eliminating the need to source these parts separately. Stainless steel construction on the buffer resists corrosion over repeated cycling while the chrome silicon spring is built for a long service life under constant compression and release. At a total kit weight of just 9.6 oz the build adds minimal bulk to the finished pistol. For builders assembling an AR-15 pistol around an SB Tactical brace this Guntec USA kit offers a complete Mil-Spec buffer tube solution in one straightforward package. Guntec AR-15 9 Pistol Brace Build Kit Specifications Manufacturer: GunTec Model: AR-15 9 Pistol Brace Build Kit Color: Black Finish: Anodized Buffer Tube Material: T6 Aluminum Buffer Tube Length: 9 Included Parts: End Plate Castle Nut Carbine Buffer Spring Buffer Material: Stainless Steel Spring Material: Chrome Silicon Total Weight: 9.6 oz Compatible Hosts: SB Tactical Braces Available At: GrabAGun