The Super Modular Rail (SMR) MK4 M-LOK are purpose-built and feature integrated M1913 picatinny rail sections at the fore of the rail in the 3, 6 and 9 o'clock positions. It also features Geissele's proprietary 2" long barrel nut.
- Brand:
- Geissele Automatics
- SKU:
- GEI-05278B
- UPC:
- 854014005717
- Minimum Purchase:
- 1 unit
