BARREL AND BCG KIT, 16.1" 4140CM, SBN, 5.7x28MM

CMMG INC.

MSRP: $499.95
Sale: $448.95
(No reviews yet) Write a Review
UPC:
810097502413

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).

All CMMG products come with their Lifetime Quality Guarantee.

CALIBER 5.7X28MM
OPERATING SYSTEM RADIAL DELAYED BLOWBACK
BARREL LENGTH 16.1
BARREL TWIST 1:9
BARREL CONTOUR MT
BARREL MATERIAL 4140CM, SBN
BARREL TWIST 1:9
MUZZLE THREAD 1/2 X 28
GAS PORT LOCATION N/A

 

Manufacturer Part Number:
57D0476
Sub Category:
Barrel and BGC Kits
Cartridge:
5.7x28mm
Length:
16.1"
Gas System Length:
Blowback
Gas Block Diameter:
Blowback Gas System - No Gas Block
Profile:
MT
Barrel Finish:
Salt Bath Nitride
Twist Rate:
1:9
Muzzle Threads:
1/2x28
Firearm Make:
AR15
Made in the USA:
Yes

Related Products