CMMG AR-15 Barrel Sub Assembly 16.1" Light Taper Profile 5.56 NATO 4140 Chrome Moly Salt Bath Nitride Finish Matte Black

Item No. FC-815835018102
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Brand: CMMG, Inc.
MFR #: 55D470B
UPC: 815835018102
Item #: FC-815835018102
Typically ships within 5 to 7 business days
This barrel from CMMG is the perfect choice for a lightweight AR-15 rifle build. It is a 16.1" light taper profile with mid length gas port. The barrel is chambered for 5.56 NATO and has a

CMMG AR-15 Barrel Sub Assemblies Are the Perfect Way to Either Replace an Existing Barrel or Start Your New Build off on the Right Foot

CMMG is excited to be able to be able to offer you high quality AR-15 barrel sub assemblies made from high quality materials on precision machinery by skilled manufacturers. All of which adds up to the quality and performance you have come to expect from CMMG.

This particular barrel is chambered in the 5.56 NATO and is 16.1" long. The barrel is made from 4140 Chrome Moly Steel and features the ultra durable Salt Bath Nitride finish both inside and out.

CMMG AR-15 Barrel Sub Assembly (Matte Black Finish) Specifications and Features:

  • CMMG 55D470B
  • 5.56 NATO (accepts .223 Remington)
  • 16.1" Barrel
  • Light Taper Profile
  • 1:7" Twist Rate
  • Threaded 1/2x28
  • Mid-Length Gas System
  • .625" Gas Journal
  • M4 Barrel Extension
  • Factory Headspaced
  • 4140 Chrome Moly
  • Salt Bath Nitride Finish (Inside and Out)
  • Matte Black
  • AR-15 Mil-Spec Upper Receiver Assemblies
1/2x28. It is made from 4150 chome moly vanadium steel, has a 1:7" twist rate, with an inside and out salt bath nitride finish.

Specifications and Features
CMMG 55D470B
5.56 NATO (accepts .223 Remington)
16.1" light taper profile
4150 chome moly vanadium steel
1:7" twist
Mid length gas port
Muzzle threaded 1/2x28
Installed M4 barrel extension
Properly headspaced
Salt bath nitride