Product Description
Nickel Boron 6.8 SPC / .224 Valkyrie Bolt Carrier Group
APOC Armory BCG’s with Bolts made from heavy duty 9310 Alloy Steel and Bolt Carriers from 8620 case-hardening aircraft grade steel. 9310 steel has a high core strength rating, high fatigue strength, and a high harden-ability rating overall, which makes it about 7% stronger than Carpenter 158 steel, when treated properly. The Carrier is made out of 8620 Steel, which is is what you typically find in military aircraft. This is a BCG made out of the highest quality components, and won’t break the bank, which is why it is perfect for your next 6.8SPC/.224 Valkyrie build.
Features:
Gas system: Direct Impingement
Caliber: 6.8SPC, .224 Valkyrie
Finish: Nickel Boron Coating
Bolt: 9310 Alloy Steel (High Hardness)
Carrier: 8620 Aircraft Grade Steel
Extractor: Shot Peened and Case Hardened D2 Tool Steel
Firing Pin: Mil-spec 8740 steel with hard chrome finish
Gas Key: Mil-Spec w/ properly staked Grade-8 screws and sealed with Permatex No. 3
Cam Pin: 8620 Steel w/ Black Nitride Finish
Quality Control: MPI Inspected for QC
