HK416, MR556 Ejection Port Cover Door Assembly
HK German HK 416, MR556 Ejection Port Cover Door Assembly Complete
This is the newer polymer style cover found on the latest HK 416 and MR556’s. This is the complete ejection port door assembly needed on all AR15 or MR556/HK416 models. Can also be used on other AR15 style projects to enhance the project with the finest cover available.
- HK MR556
- HK HK416
- AR15, M4 & M16 projects and builds
- Origin: German
- Brand: Heckler & Koch