CMC TriggersBolt Carrier GroupsMid-Range
CMC AR-15 5.56/.223 Nickel Boron Bolt Carrier Group
Complete AR-15 bolt carrier group with a nickel-boron finish, 8620 carrier, and a 9310 or Carpenter 158 bolt.
- Price
- $196
- Brand
- CMC Triggers
- Category
- Bolt Carrier Groups
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Features
- •5.56 NATO / .223 Remington
- •Nickel-boron finish
- •8620 steel carrier
- •9310 or Carpenter 158 bolt
- •Staked 4130 steel gas key
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CMC Triggers
CMC AR-15 Bolt Carrier Group, 5.56/.223, Nickel Boron, CMC-AR15-BCG-556-NIB
$195.99
Out of stock
20h ago
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90-day low $195.99More AR-15 guides & articles
Guides
Overview
CMC's nickel-boron bolt carrier group is a complete AR-15 assembly for 5.56 NATO and .223 Remington. CMC lists an 8620 steel carrier, a 9310 or Carpenter 158 bolt, a 4130 gas key secured by staked Grade 8 screws, a 4140 extractor and cam pin, three gas rings, and a hard-chromed 8740 firing pin.
Key Features
- Nickel-boron finish
- 8620 steel carrier
- 9310 or Carpenter 158 bolt
- Properly staked 4130 gas key with Grade 8 screws
- 4140 extractor and cam pin
Detailed Specifications
- caliber
- 5.56 NATO / .223 Remington
- carrierMaterial
- 8620 steel
- boltMaterial
- 9310 or Carpenter 158 steel
- extractorMaterial
- 4140 steel
- camPinMaterial
- 4140 steel
- firingPin
- Hard-chromed 8740 steel
- Finish
- Nickel boron
- sku
- CMC-AR15-BCG-556-NIB
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Compatibility Tags
family: ar-patternbolt-face: 223part: bcg-completecaliber: 223caliber: 556caliber: 300blkcaliber: 350legend
Build Your Custom Configuration
Add the CMC AR-15 5.56/.223 Nickel Boron Bolt Carrier Group to your build and see how it enhances your platform.