CMMG 38BA423 Bolt Carrier Group MK3 308 Win Black Phosphate Steel
$254.27
Complete bolt carrier group for 308 Win AR-10 builds, engineered by CMMG for reliable semiauto operation. Black phosphate steel construction handles recoil and cycling demands with proven durability.
In stock
Description
The CMMG 38BA423 is a drop-in complete bolt carrier group designed specifically for 308 Winchester AR-platform rifles. Built from quality steel with a black phosphate finish that resists corrosion and handles hard use in the field, this BCG delivers the reliable lockup and consistent cycling you need for hunting or target shooting. CMMG’s engineering ensures proper headspace and function with standard 308 components. Whether you’re building an AR-10 from the ground up or upgrading an existing platform, this complete assembly gets your rifle running without the guesswork.
Additional information
| UPC | 815835012483 |
|---|---|
| Mfr Item Number | 38BA423 |
| Manufacturer |





















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