Attaches to any standard Picatinny rail. No hardware is needed as this is a self-contained quick-attach rear sight assembly. This unique HK-designed sight features a quick & easy push button attachment for ease of use. For use with a 33mm sight line folding front sight. This item can be used on custom AR-15 builds or other similar platforms.
Compatible With:
- HK MR556/MR223
- HK 416
- HK MR762/MR308
- HK 417