MicroBest BCG 556 Phosphate C158 LUXE

SHIPS TO YOU WED SEPT 11

Features:
LUXE UPGRADES (listed in blue italics for ease of viewing)
- Sprinco 27001 Extractor Spring, 5-coil 
- Sprinco 27001 Ejector Spring, Enhanced Chrome Silicon Moly Plated Cryogenic Processed
- OCKS Gas Key Fasteners, phosphate finish

Bolt Carrier:
Heavy Duty M16 design
8620 steel heat treated
Gas Key Material - 4140 heat treated
OCKS Gas Key Fasteners, phosphate finish
Phosphate Finish, Chrome lined gas key and carrier interior

Bolt Subassembly:
Bolt: 158 Carpenter Steel, shot peened per mil spec
MPI tested: Yes, Individual
Extractor: 4340 mil spec, mil spec 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 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
Phosphate Finish

Cam Pin:
4340 mil spec
Phosphate Finish

Firing Pin:
Mil spec firing pin made from centerless ground 8740 steel, hard chrome plated

Write a review