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.
Magpul MAG427-FDE MOE M-LOK Rifle-Length Handguard AR-Platform Flat Dark Earth Polymer
$37.95
