CMMG Barrel and BCG Kit 4140CM SBN Drop in Barrel 5.7 x 28mm 16.1″ Barrel Black

CMMG Barrel and BCG Kit 4140CM SBN Drop in Barrel 5.7 x 28mm 16.1″ Barrel Black

$445.69

The 16.1” 5.7x28mm Barrel and BCG Kit is just the thing for building a carbine length AR in 5.7x28mm using CMMG’s patented Radial Delayed Blowback operating system.

283550 in stock

SKU: CA57D0476
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Description

The 16.1” 5.7x28mm Barrel and BCG Kit is just the thing for building a carbine length AR 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 without sacrificing key 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).

UPC: 810097502413

Additional information

Weight 2.7100 oz
Dimensions 25.500 × 2.000 × 2.000 in
Color

Black

Firearm Accessories Weapon Fit

AR-15

Brand

CMMG

Compliance Item Type

Upper Parts

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