Magpul Gen. 2 MBUS Back-Up Front Sight Earth

The new MBUS (Magpul Back-Up Sight) GEN 2 is a low-cost, color injection molded, folding back-up sight. The MBUS Front Sight is adjustable for elevation and fits all MIL-STD-1913 Picatinny rail equipped weapons, but is specifically tailored to the AR15/M16/M4 platform. DO NOT MOUNT ON A GAS BLOCK...