Guntec AR-15 A2 Buffer Tube Set Features The Guntec USA A2 Buffer Tube Set is machined from T6 6061 aluminum giving the rifle-length tube the strength to support a fixed A2 stock through years of recoil and handling. Because the kit includes the A2 buffer and a matching rifle-length buffer spring alongside the tube itself builders do not need to source matching components separately or guess at compatibility. This complete package approach simplifies one of the more detail-sensitive parts of an AR-15 build where mismatched buffer weights or spring lengths can cause cycling issues. At 11 oz total the set keeps the rear of the rifle from becoming unnecessarily heavy while still delivering the reliable spring tension a fixed stock design depends on. The matte finish on the aluminum tube matches typical AR-15 hardware giving the rifle a clean consistent look once installed. This rifle-length configuration is the traditional setup used on fixed A2 stocks offering smooth predictable cycling that many shooters still prefer over collapsible stock systems. For anyone building a classic-profile AR-15 this Guntec USA buffer tube set provides a complete straightforward solution. Guntec AR-15 A2 Buffer Tube Set Specifications Manufacturer: GunTec Model: AR-15 A2 Buffer Tube Set Compatible Hosts: AR-15 Material: Aluminum Finish: Matte Includes: A2 Buffer Tube Buffer Rifle-Length Spring Weight: 11 oz Country of Origin: Made in the USA Available At: GrabAGun