ABC RIFLE COMPANY AR15 Ejection Port Dust Cover Assembly Black. It includes a phosphate finish for corrosion resistance and enhanced durability in harsh conditions. The kit features a precision-formed ejection port cover spring and an E-clip retaining ring for reliable secure installation. Designed to fit standard AR-15/M4 upper receivers this EPC ensures consistent ejection port coverage and dependable performance in both training and duty applications. Specifications for ABC RIFLE COMPANY AR-15 Ejection Port Dust Cover Assembly: Manufacturer: ABC RIFLE COMPANY Color: Black Finish: Engraved Gun Model: AR-15 Caliber: 9mm Luger Gun Make: AR Platform Gun Type: Rifle Package Contents: ABC RIFLE COMPANY AR-15 Ejection Port Dust Cover Assembly What firearm models does the manufacturer say ABC RIFLE COMPANY AR-15 Ejection Port Dust Cover Assembly is compatible with? The manufacturer says that ABC RIFLE COMPANY AR-15 Ejection Port Dust Cover Assembly is compatible with AR-15ABC RIFLE COMPANY EPC15: AR15 Ejection Port Dust Cover Assembly Black