Geissele Automatics MK4 Super Modular Rail 10" Federal M-LOK Handguard (SKU 05-430)
The Geissele MK4 10" Federal Super Modular Rail is a free-float M-LOK handguard for AR15/M4 pattern uppers, featuring a full-length top Picatinny rail and a full-length 6 o'clock Picatinny rail, with M-LOK slots along the sides.
Built from aluminum with a Type 3 hardcoat anodized finish, the MK4 Federal rail uses extensive venting for heat dissipation while maintaining a rigid mounting platform.