HK MR556, CR556 Modular Rail System 9"- Black
HK German MR556 & CR556 handgaurd that accepts the HKey style modular rail sections. This is also the forearm that clear the OSS suppressor system.- MR 556
- HK 416
- CR 556
1 Review Hide Reviews Show Reviews
-
Question? Will this work with any other upper than hk? Please be true. Thank you
Question? Will this work with any other upper than hk? Please be true. Thank you