A review of the Magpul MBUS Rear Sight. The MBUS (Magpul Back-Up Sight) fits most 1913 Picatinny rail equipped weapons, but is specifically tailored to the AR15/M16 platform.
A review of the Magpul MBUS Rear Sight. The MBUS (Magpul Back-Up Sight) fits most 1913 Picatinny rail equipped weapons, but is specifically tailored to the AR15/M16 platform.