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Ralph's Review of CMMG Mk4 5.7X28mm Resolute Upper Group Receiver
Just received my 5.7x28 upper. Fit perfect on my lower. Functioned flawlessly, After 200 rounds no fail to feed no jams functioned great. Looks great All of my buddies are jealous and are thinking about ordering one for themselves. A little expensive but well worth it. Highly recommend one you can’t go wrong. It is very accurate one moa at 100 yards. Love it
Pros:
- None
Cons:
- None
Best Used for:
- home defence
- home defense. Just fun plinking
Would Recommend:
Yes