Home / AR Upper Components / CMMG EJECTION PORT COVER KIT MK3 CMMG EJECTION PORT COVER KIT MK3$14.95 2 in stock [] CMMG EJECTION PORT COVER KIT MK3 quantity Add to cart UPC: 815835016429 SKU: 38BA538 Category: AR Upper Components Product ID: 3433 Description Description Includes Mk3 ejection port, rod, and spring. You may also like… CMMG EJECTION PORT COVER KIT MK3 $14.95 Add to cart Related products SOLGW 5.56 BOLT CARRIER GROUP 158 CARPENTER SP/HPT/MPI $179.00 Add to cart Out of stock AERO PRECISION .308/762 BOLT CARRIER GROUP BLACK NITRIDE $234.99 Read more LBE Unlimited ARFPN – Firing Pin $7.95 Add to cart Bravo Company Manufacturing Low Profile Gas Block – .750″ – Set Screw Style $44.95 Add to cart