Important:
Firearms must ship to a licensed FFL dealer. We will contact you after purchase.
Share:
CMMG BBL AND BCG KIT 16.1" 5.7X28MM
Product Details
The 16.1" 5.7x28mm Barrel and BCG Kit is perfect for building an AR pistol or SBR in 5.7x28mm using CMMG's patented Radial Delayed Blowback operating system. Unlike typical direct blowback systems, Radial Delayed Blowback not only reduces the weight in your BCG but it results in less felt recoil than a straight blowback system and still provides essential features like last round bolt hold open. CMMG's 5.7x28mm Barrel and Bolt Kits are designed to be assembled into a Mk4/mil-spec AR15 upper and work with either a CMMG Mk57 lower receiver or Mk4/AR15 mil-spec lower receiver (when using CMMG 5.7 AR Conversion Magazines).
Specifications
UPC
810097502413
Manufacturer
CMMG
Manufacturer Part Number
57D0476
Barrel Length
16.1"
Caliber/Gauge
5.7 x 28 mm
Length
16.10"
Model
Replacement Barrel
Product Type
Barrel
SKU
RSR|CMMG57D0476
Reviews
There are no reviews yet.
Only logged in customers who have purchased this product may leave a review.
Questions & Answers
Need help with CMMG BBL AND BCG KIT 16.1″ 5.7X28MM? Contact our team for fitment questions, transfer requirements, stock checks, and product guidance.
Need a Live Answer?
Our team can help with compatibility, legal transfer details, shipping restrictions, and availability questions before checkout.
Documentation & Support
Looking for manuals, setup help, or warranty details? Use the resources below or contact us directly for assistance.
All firearms are sold in compliance with federal, state, and local laws. Buyers must meet all legal requirements for firearm ownership in their jurisdiction.
Federal Requirements
Must be 18+ for long guns and 21+ for handguns
Valid government-issued photo ID required
Background check (NICS) required for all firearm purchases
Reviews
There are no reviews yet.