Toolcraft Cage Code carrier (gov contract specs)
8620 steel
Heavy Duty M16 design
Grade 8 Gas Key Screws, Staked
Gas Key Material - 4140
Chrome lined gas key and carrier interior
Manganese Phosphate per Government Spec
Government contract 1B1B6 engraving

 

UPC
MFG Toolcraft
MODEL TOOLCRAFT .223/5.56 BOLT CARRIER CAGE CODE 1B1B6
TITLE TOOLCRAFT .223/5.56 BOLT CARRIER CAGE CODE 1B1B6

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