perminator
Marksman
last week i picked up a dedicated 22 upper off of armslist for a pretty good deal was said to be a cmmg but not sure. did cmmg use polymer uppers? there are no markings on it anywhere the only thing significantly different about this is the shell deflector is slotted like a comb and there is a metal plug in the forward assist hole. anyone know what this might be? ill get some pics up later if this helps.
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