Enhanced Bolt Carrier Group 5.56 Nitride Black
$159.99 at MidwayUSA · 8 stores
In stock
CMC Triggers AR-15 5.56/.223 Caliber Bolt Carrier Group Mil-Spec Nickel Boron Nickel Boron Small
CMC Triggers · Bolt Carrier Group
No ratings yetBest price
$175.99at OpticsPlanet
In stock Sale checked Oct 22, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| OpticsPlanet | $175.99Salechecked Oct 22, 2026 | In stock | Buy at OpticsPlanet |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
Price history
Lowest in-stock price in the last 30 days: $175.99 at OpticsPlanet. Dashed line = out of stock. Tracking since Oct 18, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| OpticsPlanet | $175.99 | $175.99 | $175.99 |
Since Oct 18, 2026.
About this part
The CMC Triggers AR-15 5.56/.223 Caliber Bolt Carrier Group Mil-Spec Nickel Boron Nickel Boron Small is a 5.56 / .223 bolt carrier group from CMC Triggers. One store lists it, OpticsPlanet at $175.99. The lowest in-stock price in the last 30 days was $175.99 at OpticsPlanet.
Fits and works with
- Caliber
- 5.56 / .223 · Shop matching ammo
- Bolt
- Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
Specifications
- Manufacturer
- CMC Triggers
- Platform
- AR-15
- Caliber
- 5.56 mm NATO
- Finish
- Nickel Boron
- Material
- Steel
From the manufacturer
CMC Triggers AR-15 5.56/.223 Caliber Bolt Carrier Group Mil-Spec Nickel Boron Nickel Boron Small. This one is mil-spec dimensioned for 5.56 and .223 and it's finished in nickel boron. That coating is slick enough that carbon wipes off with a rag instead of a scraper and it cuts friction inside the receiver too. Many shooters run these with very little lube. If you've ever spent an evening scrubbing a BCG you'll appreciate the difference. Specifications for CMC Triggers AR-15/10 5.56/.223 Caliber Bolt Carrier Group: Manufacturer: CMC Triggers Color: Black Fabric/Material: Steel Gun Make: AR Platform Gun Model: AR-15 Package Contents: CMC Triggers Bolt Carrier Group 5.56 NATO/223 Remington Fits AR-15 Black What firearm models does the manufacturer say CMC Triggers AR-15/10 5.56/.223 Caliber Bolt Carrier Group is compatible with? The manufacturer says that CMC Triggers AR-15/10 5.56/.223 Caliber Bolt Carrier Group is compatible with AR-15CMC Triggers CMC-AR15-BCG-556-NIB: AR-15 5.56/.223 Caliber Bolt Carrier Group Mil-Spec Nickel Boron Nickel Boron Small
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