PSA Nitrided Bolt Carrier Group (full-auto profile) with 9310 bolt
Retail:$229.99
PSA 224 Valkyrie barrel and BCG combo. Barrel is 20 inches in rifle-length gas, constructed from 416R stainless steel with a 1:6.5 twist for long-range accuracy. The bolt carrier group is nitrided with a full-auto profile and features a 9310 bolt.