Home / Bolt Carrier Groups / Rosco Manufacturing / ROSCO MANUFACTURING Bolt Carrier Group 5.56/300 Blk fits AR-15 Black
▼ 4% below avg
ROSCO MANUFACTURING Bolt Carrier Group 5.56/300 Blk fits AR-15 Black
Lowest Price
$125.1
MSRP
$146
Savings
14% off
Verified In Stock at
2 Stores
Updated
Aug 26, 2026
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Cam Pin: Hardened 4340
Carrier Material: 8620 Steel
Ejector: S7 Tool Steel
Extractor: 4340 Steel
Firing Pin: 8740 Steel, Mil-Spec, Center-less ground & Hard Chrome coated Bolt Material: 9310, Properly Heat treated, MPI/HPT
Gas Key: 4130 Steel, attached with Grade 8 hardware, properly staked
Specifications
Description
ROSCO MANUFACTURING Bolt Carrier Group 5.56/300 Blk fits AR-15 Black
