Guntec Ar15 Buffer Tube With - Buffer & Spring Rainbow Pvd

The Guntec AR15 Buffer Tube with Buffer & Spring Rainbow PVD is a complete receiver extension assembly designed for modern AR-15 platforms requiring reliable bolt carrier group dampening and stock stability. This matched set delivers the core components needed for smooth cycling and repeatable recoil management on patrol rifles, competition builds, and duty-ready carbines.

The rainbow PVD finish provides both corrosion resistance and a distinct aesthetic appeal while maintaining the functional integrity demanded by law enforcement and military operators. The hard, multi-layer physical vapor deposition coating resists corrosion and wear from field use, moisture exposure, and frequent handling without compromising dimensional accuracy or fit tolerances.

This assembly is ideal for shooters building duty rifles or competition setups, ensuring compatibility with standard AR-15 stocks. The included buffer and spring pair are matched for optimal energy dissipation, preventing bolt bounce and maintaining lock-time predictability essential for accuracy-focused applications.