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BLEM GRADE B - THESE BCGS HAVE SOME DISCOLORED WEAR POINTS AT TWO CORNERS ON THE TOP FRONT OF THE CARRIER. THEY ARE VISIBLE WHEN VIEWED UNDER A 10X ILLUMINATED LOUPE AND ARE DUE TO UNKNOWN HANDLING AT MICROBEST. IT IS SUSPECTED THAT THE CHROME IS THIN OR WORN IN THE TWO FRONT CORNERS OF THE BOLT. THE BCG ASSEMBLY IS 100% FUNCTIONAL.
Features:
- All-Chrome Except for Phosphate Extractor
LUXE UPGRADES (listed in blue italics for your viewing pleasure)
- Sprinco 27001 Extractor Spring, 5-coil
- Sprinco 27001 Ejector Spring, Enhanced Chrome Silicon Moly Plated Cryogenic Processed
- OCKS Gas Key Fasteners, Properly Staked
Bolt Carrier:
Heavy Duty M16 design
8620 steel heat treated
Gas Key Material - 4140 heat treated
OCKS Gas Key Fasteners, Properly Staked, phosphate finish
Chrome plated gas key and carrier interior
Hard chrome finish
Bolt Subassembly:
Bolt: 158 Carpenter Steel, shot peened per mil spec
MPI tested
Extractor: 4340 mil spec, mil spec phosphate finish
Extractor Pin: S7 mil spec
Extractor Spring: Sprinco 27001 5-coil Extractor Spring
Extractor Insert: Mil-Spec Black Extractor Insert
Extractor O-Ring: NO - This version uses the Sprinco extractor insert instead
Ejector Pin: S7 mil spec
Ejector Spring: Sprinco 27001 Enhanced Chrome Silicon Moly Plated Cryogenic Processed
Gas rings: Three (3), Mil spec
Chrome plated
Cam Pin:
4340 mil spec
Hard chrome finish
Firing Pin:
Mil spec firing pin made from centerless ground 8740 steel, hard chrome plated
