Guntec USA MILSPEC AR15 Buffer Tube Kit 6 Position Aluminum Receiver Extension

The Guntec USA GUNTEC MILSPEC AR15 BUFFER combines robust aluminum construction with a complete buffer tube kit to deliver a reliable, mil-spec solution for AR15 owners seeking performance and consistency. This matte, all-aluminum buffer tube set includes a 6-position receiver extension, end plate, and castle nut, paired with a 3 oz carbine buffer and chrome spring to help ensure smooth cycling and repeatable chambering across a range of loads. Designed to fit AR platform rifles, the MILSPEC Carbine Buffer Tube offers enduring durability while maintaining a conservative profile that complements standard-issue setups. Made in the USA, this kit features a precise dimension footprint of 1.75 x 3.45 x 14.70 inches, making it compatible with common AR15 configurations and easy to install for both range work and field use. The combination of mil-spec components and high-quality aluminum ensures rigidity, corrosion resistance, and dependable performance under demanding conditions, enabling shooters to tune their recoil impulse and achieve consistent shot timing. Whether upgrading a factory rifle or building a precise, rock-solid AR platform, this buffer tube set from Guntec USA is a reliable choice for durable, repeatable operation.