Microbest BCG 556 Chrome C158 LUXE Phos Ext

AFTER MANY MONTHS OF WAITING. 
MAY INCLUDE SLIGHT OVERCUT IN FA ASSIST (SAND CUTS) / DEEP STAKING STRIKES - DOES NOT AFFECT FUNCTION

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, phosphate finish

Bolt Carrier:
Heavy Duty M16 design
8620 steel heat treated
Gas Key Material - 4140 heat treated
OCKS Gas Key Fasteners, 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 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

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