Brownells M16 5.56 NATO Chrome Bolt Carrier Group Unserrated

This is Brownells' M16 profile bolt carrier group in a matte silver chrome finish, with a smooth carrier that has no forward assist serrations. Brownells modeled the no serration version on the original carriers in early AR-15s like the Air Force Model 601.

The bolt is 9310 steel and magnetic particle inspected, the carrier is hardened 8620 steel, and the extractor, gas key and cam pin are chromed too. The extractor has a spring and rubber insert, and the gas key is torqued and staked. It fits AR-15 and M16 rifles in 5.56 NATO, 223 Rem and 300 BLK.