RISE Armament's .308 advanced bolt-carrier group (BCG) is manufactured with precision and individually inspected to ensure high-level performance
Key Features
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
Key Features
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