Today l got to run 60 rnds of .22 thru my recent assembled upper (last night). 16.1" CMMG barrel 1:16 twist blowback. SI Warcomp w/MBUS and red dot. Proven PSA lower w/borebuddy kit, Bull Moose, Wolff , Nic Taylor and PSA FCG.
I kid you not…not one hiccup! 7-8 BMUS…9-bull red dot at rest 40 yds. Yes it was dirty as expected.
Almost forgot, Midway slick side 15" upper. CMMG BCG.







