5.56/300blk Melonited BCG
Original Price $129.85
Your Price $99.99
Add To Cart
Complete, Mil-Spec assembly with bolt, bolt carrier, and firing pin. Ready to drop into the rifle or carbine upper of your choice.
Mil-Spec MIL-STD-171 Melonited
Individually MPI Tested
Bolt: 9310-Case hardened, Shot Peened, and MPI tested.
Carrier: 8620 Tool Steel-(M16 full shroud)-Heat Treated, Case Hardened.
Gas Key: Melonited-Grade 8 Hardened Fasteners, Permatex No. 3 sealed, Torqued to 60 in lbs, & Mil-Spec Staked
Cam Pin: 4340 Steel-Heat Treated & Phosphated
Extractor: Tool steel S7-Heat Treated to 48-53 Rockwell C & Phosphated