Home / AR Upper Components / CMMG EJECTION PORT COVER KIT MK3 View cart “LBE Unlimited ARFPN – Firing Pin” has been added to your cart. 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 LBE Unlimited ARFPN – Firing Pin $7.95 Add to cart Out of stock SIONICS Upper Receiver Parts Kit $29.95 Read more SOLGW Gas Block Low Profile .750 w/ Set screws – V2 $45.00 Add to cart Bravo Company Manufacturing GUNFIGHTER Charging Handle 556 Mod 4B – Medium Latch $74.95 Add to cart