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...
308 BOLT CARRIER GROUP - NICKEL BORON
8620 Steel Carrier
Nickel Boron Coated Finish
Staked gas key
THE AR10 PLATFORM DOES NOT ENJOY A COMMON DESIGN BETWEEN MANUFACTURERS, LIKE THE AR15. AS A...
LOSOK CUSTOM ARMS .308 BOLT CARRIER GROUP
For AR-10/LR-308 rifles
158 Carpenter Steel Bolt with Nickel Boron Finish
8620 Steel Carrier with Black Phosphate Finish
Made in the USA
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...