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So I just sent money for this upper receiver.. looks to be a 72X series (likely either 727 or RO6520); C marked, A2 upper receiver with M4 feed ramps and a 4 stamped above gas tube hole...
Would it be sacrilege to put a non-colt barrel on this build?
and to stick it onto the 2nd PSA M16A2 lower that I recently completed? Shown with parts for the upper, rifle length gas tube, non F-marked FSB, A2 handguards, triangle cap, A2 device, sling loop with rivet, jam nut, pins, barrel nut assembly with delta ring,complete BCG, and my 3 other ARs.
Would it be sacrilege to put a non-colt barrel on this build?
and to stick it onto the 2nd PSA M16A2 lower that I recently completed? Shown with parts for the upper, rifle length gas tube, non F-marked FSB, A2 handguards, triangle cap, A2 device, sling loop with rivet, jam nut, pins, barrel nut assembly with delta ring,complete BCG, and my 3 other ARs.
