Upper came in last Tuesday. Decided to swap out the Spikes grip for a MOE (matches the rest of the MOE!) - put 'er together, and too 'er out for a quick hundred rds. down the range. Didn't like the firing pin (3 light primer strikes in the last 40rds.) - swapped it for a space BCM pin I had laying around. Hope to take it out again soon, and see how it does!
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