Rise Armament is excited to introduce their AR-15 Complete Bolt Carrier Group. The carrier is made from 8620 tool steel heat treated and case hardened. The bolt is made from 9310 and has been magnetic particle inspected. The gas key is made from tool steel and two grade 8 hardened fasteners which are properly staked. The cam pin is made from 4140 steel and the extractor is made from tool steel and is shot peened. The carrier features a nitride black finish.

Specifications and Features:
Rise Armament AR-15 Complete Bolt Carrier Group RA-1011-BLK
.223 Remington/5.56 NATO/.300 AAC Blackout
High-strength and easy-to-clean black nitride finish
Individually MPI tested
Bolt: 9310 MPI tested
Carrier: 8620 tool steel heat treated and case hardened
Gas key: tool steel - grade 8 hardened fasteners and staked properly
Cam pin: 4140 steel
Extractor: tool steel / shot peened
Nitride Black Finish