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Capn Mike's Review of CMMG, Inc 22LR Mk4 Upper Receiver Groups
The quality of this upper is top notch.
Shoots great and is able to use Black dog mags, as well as S&W15-22 mags with the "better mag" adapter, making the last round bolt hold open fully functional. Its much more accurate than my 1/7 twist AR upper with a conversion kit.
Not cheap, but it is the best way to shoot 22lr out of your SBR lower.
Shoots great and is able to use Black dog mags, as well as S&W15-22 mags with the "better mag" adapter, making the last round bolt hold open fully functional. Its much more accurate than my 1/7 twist AR upper with a conversion kit.
Not cheap, but it is the best way to shoot 22lr out of your SBR lower.
Pros:
- Accurate
- top notch quality
Cons:
- price
Best Used for:
- target
- tactical training
Would Recommend:
Yes
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