Great upper:
Never had a malfunction. Was able to get 1” groups with it at 100 yards with an Aimpoint. About 5,000 rounds have gone through it, all brass. Very smooth recoil impulse. Pinned and welded by Ayan at Boltcarrier.
$1000 shipped and I’ll throw in some 10-round M3 PMAGs. PM me, text or call at 650-918-8514
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