Guntec AR-15 Pistol Buffer Tube Kit Features The Guntec USA AR-15 Pistol Buffer Tube Kit includes a buffer tube machined to 7 3/8 inches in length with a 1.25 inch outer diameter finished in a durable Anodized Black coating that resists wear and corrosion. A castle nut secures the tube to the receiver extension while a foam tube cover adds cushioning and comfort against the shooter s forearm or cheek during use. The included 3 oz CAR buffer and spring both made in the USA provide the correct weight and tension for reliable cycling in a pistol length AR-15 build. Together these components bring the total buffer tube kit weight to 11.4 oz giving builders a complete ready to install assembly. An ambidextrous one point sling end plate is included and machined from T6 aluminum allowing a sling to be mounted securely at the rear of the receiver regardless of the shooter s dominant hand. This end plate design simplifies attaching a sling without requiring a separate mounting point on the stock or buffer tube. Guntec USA builds this kit specifically for AR-15 pistol configurations ensuring proper fitment and function for builders assembling a pistol caliber or rifle caliber AR pistol. The Guntec USA AR-15 Pistol Buffer Tube Kit in Black is available for sale at GrabAGun for builders who want a complete American made buffer system in one kit. Guntec AR-15 Pistol Buffer Tube Kit Specifications Manufacturer: GunTec Type: Pistol Buffer Tube Kit Color: Black Finish: Anodized Buffer Tube Length: 7 3/8 Buffer Tube OD: 1.25 Buffer Weight: 2.9 oz Kit Total Weight: 11.4 oz Material: T6 Aluminum Country of Origin: Made in the USA Available At: GrabAGun