San Tan Tactical AR-15 5.56 / .223 Enhanced Bolt Carrier Group

The San Tan TacticalA(R) AR-15 5.56 / .223 Enhanced Bolt Carrier Group was designed specifically for shooters who want nothing but the best performance from their rifles. The carrier assembly features a flared rear that helps reduce carrier tilt during recoil and has strategically relocated key bearing surfaces for increased reliability. What's more, the carrier assembly boasts case hardened 8620 steel for superior strength and lasting dependability. Plus, this MPI and HPT tested bolt carrier group (BCG) has sand cuts that improve reliability, especially in heavily fouled guns, while the increase in mass helps to ensure proper gas pressure with increased dwell time that improves extraction especially when shooting suppressed or short-barreled rifles. The bolt features Mil-Spec dimensions and its external surfaces are CNC Ground after heat treatment to ensure a precision fit. Plus, the area behind the gas rings is also precision CNC Ground after heat treatment to provide the smoothest area possible for easier cleanup and better longevity. The bolt features 9310 case hardened Steel construction and bolt components are Shot Peened and Black Nitride coated for superior corrosion-resistant. Compatible with .556, .223, and .300 BLK rifles. Backed by a lifetime warranty from San Tan Tactical. Made in USA.