Description
HK MR556/416 Extended 11″ Quad Rail
This drop-in unit offers two full inches in extra length, not the standard 9″ rail that comes with the HK 416/MR556, but an extended 11″ rail that allows for a longer sight radius and more rail space. It comes complete with the locking pin as a bonus. *Weight: 14.5 Ounces*
Compatible With:
- HK MR556
- HK 416
