engineer39MR556A4 upper receiver with a 14.5 light profile nefarious A5 barrel and HK barrel nut. Roughly 200 rounds on the set. Barrel is slotted for A1 gas blocks and the NA5 block. Barrel has some light scratching where a gas block was pressed on, but it is simply cosmetic. Upper is complete with bushing, FA, and EPC (HK). No piston available, but I do have a spare A1 gas block I can include for $35.
Price is shipped and insured.
