Description
Ejection port dust cover is permanently marked 6MM ARC on both sides so it is visible in open or closed position.
Mark your upper to designate the caliber with using a single lower with different uppers.
Fits AR-15/M4 Upper Receivers.
Sale!
6MM ARC Ejection Port Dust Cover
Original price was: $9.04.$6.90Current price is: $6.90.
71 in stock
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