CMMG BBL AND BCG KIT 16.1″ 5.7X28MM
$435.02
Elevate your AR build with the CMMG BBL AND BCG KIT 16.1″ in 5.7X28MM, featuring CMMG’s innovative Radial Delayed Blowback operating system. This kit offers a lightweight, reliable platform ideal for building your own AR pistol or SBR, ensuring exceptional performance and handling in a versatile caliber. Perfect for both competitive shooters and home defense enthusiasts.
1 in stock
The CMMG Barrel and BCG Kit is chambered in 5.7X28MM and features a 16.1-inch black barrel. It fits AR rifles.
The kit uses CMMG’s Radial Delayed Blowback operating system.
- Manufacturer: CMMG
- Caliber: 5.7X28MM
- Barrel Length: 16.1 inches
- Color: Black
- Fit: AR rifles
- Operating System: Radial Delayed Blowback
- Manufacturer Part Number: CMMG57D0476
- UPC: 810097502413
| Weight | 2.688 lbs |
|---|---|
| Dimensions | 25.500 × 2.000 × 2.000 in |
| Manufacturer | Cmmg Inc. |
PROCESSING & SHIPPING
Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.
FIREARM TRANSFERS
- Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
- Your receiving FFL will need to email their license to [email protected] before we can ship.
- Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.
You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.

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