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Questions & Answers
Does this barrel work with the CMMG 22LR Conversion Kit bolt group?

With some mods, yes. You would need to change out the chamber adapter from your bolt group, to the barrel collar that CMMG makes for these. The collar lives on the bolt carrier assembly, but it can be installed just like a 5.56 BCG, all together from the rear of the upper. Do it, you will be so happy. I did it because I got tired of cleaning my 5.56 chamber, and star chamber locking lug teeth. 22 shoots dirty, and a dedicated 22lr barrel makes cleanup waaaay easier. Hope this helps!!

by John, Verified Owner, June 19, 2021
What muzzle break do you recommend for this barrel? Expert Answer

The CMMG, Inc Barrel Sub-Assemblyy, 22LR, 16in barrel is threaded for 1/2x28. So a standard AR15 5.56/.223 muzzle brake will work. The muzzle brakes at the link below will work.
https://www.opticsplanet.com/trybe-defense-muzzle-brake.html?_iv_caliber-193146313=dot-223-remington&_iv_threads-per-inch=1-sl-2x28

by Hunter, Gear Expert, September 28, 2022
Customer Reviews
Helpful Positive Review
Works great but not the most accurate by Mark D, Verified Owner, June 22, 2023
I'll start out by saying I did not have high expectations for the accuracy of this barrel. I wanted to build a dedicated 22LR upper for some fun plinking and some AR rifle mechanics practice without having to spend the money on .223/5.56 ammo. Also, ...
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3/5 found this helpful
Helpful Positive Review
22LR barrel makes a differance by Pave, May 30, 2016
I purchased this barrel for my new AR-15 22LR upper build. When building the upper, the barrel married up to the upper receiver incredibly tight, bUT nI thing a ltitle elow gtease couldnt fix. It's a solid barrel and my grouping has tightened up cons...
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5/5 found this helpful
Most Recent Reviews
If you plan on using using a super safety for 22lr dont mess around. Do t mess with the short barrels they don't have enough back pressure and they're super difficult to mag dump.this barrel changed everything now it's rediculously reliable will mag ...
Read More...
Read All 3 Reviews
Finish:
Salt Bath Nitride
Caliber:
.22 Long Rifle
Barrel Length:
16.1 in
Barrel Profile:
M4
Barrel Twist Rate:
1-16
Gun Model:
AR-15
Condition:
New

Code: 2CM-ATB-CMMG22D7C0A

MPN: 22D7C0A

UPC: 815835014722

List: $199.95Save 10%
$179.99

Product Info for CMMG, Inc Barrel Sub-Assemblyy, 22LR, 16in

Perfect for building your custom dedicated 22LR AR15 upper group.image

Features of CMMG, Inc Barrel Sub-assy, 22lr, 16inch Cm, M4:

  • 16.1"
  • M4 Profile
  • 4140 Chrome Moly
  • Salt Bath Nitride Finish inside and out
  • 1:16 Twist
  • 22LR Sprorting Chamber
  • Threaded 1/2-28
  • .750" Carbine length Journal

Package Contents:

  • CMMG, Inc Barrel Sub-assy, 22lr, 16inch Cm, M4

Specifications for CMMG, Inc Barrel Sub-Assemblyy, 22LR, 16in:

Manufacturer: CMMG
Finish: Salt Bath Nitride
Fabric/Material: 4140 Steel
Caliber: .22 Long Rifle
Barrel Length: 16.1 in
Barrel Profile: M4
Barrel Twist Rate: 1-16
Gun Model: AR-15
Condition: New

Package Contents:

  • CMMG, Inc Barrel Sub-Assemblyy, 22LR, 16in

CMMG, Inc Barrel Sub-Assemblyy, 22LR, 16in Orderable Models

List of Orderable Models

  • CMMG, Inc Barrel Sub-Assembly, M4 Profile, 22LR, 16.1in, 4140CM, Salt Bath Nitride, 22D7C0A , MPN: 22D7C0A , UPC: 815835014722 , Code: 2CM-ATB-CMMG22D7C0A
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