MK46 NEW FEED COVER FOR THE M249, MK46 AND M249S IN FDE. PICATINNY SIGHT RAIL AT FRONT FOR OPTICS WITH MOUNTINGS AT REAR FOR IRON SIGHT. MADE OF 7075T6 ALUMINUM. (THIS FEED COVER FITS FN MK46/M249/M249S, HDD MK46, MK46A1 AND MGA SAW) (620)