Nickel Boron M16 Bolt Carrier Group
Shot Peened Bolt
Gas Key Hardened to USGI Specifications
Gas Key Grade 8 Hardened Fasteners
Gas Key Staked Per Mil-Spec
Tool Steel Extractor
Extractor...
Always Armed .308 Bolt Carrier Group
Made in the USA
Compatible with DPMS Style AR10 .308
9310 Bolt
8620 Steel Carrier
Salt Bath Nitride Finish
Always Armed 18" AR-10 .308 Barrel
4150...
Always Armed 9MM Bolt Carrier Group
Made in the USA
Black Nitride Finish
8620 Steel Carrier
17-4 Stainless Steel Firing Pin
Ramped and Compatible with Standard AR15 Hammer
Works with Both...