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CMMG, Inc Barrel Sub-Assemblyy, 22LR, 16in
$174.95 $167.49 Save $7.46
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Most Helpful Positive Review 22LR barrel makes a differance
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 considerably. My grouping could be tighter, but that could be the ammo. Worth buying, if you would like to build a dedicated 22LR upper.
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This was a huge game changer....

by Andrew, from AZ, United States Written on August 31, 2025
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 dump even the oldest cheapest ammo.allthough the nitride is annoying to drill, ended up messing up my FSB and had to just weld it onto the barrel, but I did make it look really clean. And Because it was such a night and day difference I think I wanna buy another barrel and make a second upper. I feel like I won the lottery.
Pros:
  • 100x more reliable and built with precision
Cons:
  • The nitride is so hard you can't drill barrel pins eve with cobalt bits.
Best Used for:
  • Fun and defense
Would recommend: Yes
Was it helpful to you? Yes | No

Works great but not the most accurate

by Mark D, Verified Owner from OR, United States Written on 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, our range doesn't allow shooting steel at less than 50 yards with rifle ammo so using the tactical shooting bay with an AR means you need to shoot another type of ammo. Now most of this type of shooting doesn't require pin point accuracy so it doesn't bother me. Just want anyone purchasing this barrel to know it'll probably shoot at best 1 MOA at 25 yards. The best I've gotten out of it has been about 2 MOA at 25 yards with both CCI Mini Mag and CCI AR Tactical Ammo. I've gone through about 400 rounds so far and that's been pretty consistent. I can hit a silhouette target at 100 yards but it isn't in consistent hit zones (this is shooting from a bench with a bag). I am using the CMMG Bolt with the BoreBuddy collar incase you were curious. I'll update this review later if I find better ammo or the barrel gets better over time.

One other little annoyance is the thickness of the barrel flange. It's slightly thicker than standard AR Barrel so the barrel nut doesn't seat as closely to the receiver. Not a functional issue but it creates maybe a 1/8" gap in the handguard to receiver fitment.

Overall, definitely a lot of fun to have and I enjoy it. Just wish it was a tad better so I could go from 15-100 yards with it.
Pros:
  • Price
  • easy installation
Cons:
  • Not very accurate
  • fitment isn't the best
Best Used for:
  • Plinking & fun
Would recommend: Yes
3 of 4 found the following review helpful.
Was it helpful to you? Yes | No
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