The MBUS Pro (Magpul Back-Up Sight) is a corrosion-resistant all-steel back-up sighting solution that delivers maximum functionality and strength with minimum bulk at a price that's even smaller than its size.ÂÂ
_x000D_The dual aperture, windage adjustable Rear and no-tool, elevation adjustable Front Sights excel in all 1913 Picatinny rail mounting applications, including rail-height gas blocks. Positive detents keep the MBUS Pro Front and Rear at standard AR sight height when deployed, and so low when they are stowed that you'll never notice them until they're needed. Narrow width Front is compatible with most IR aiming laser and light installations for the professional user.
_x000D_Specs:
_x000D_All steel construction: finished with qpq salt bath nitride for extreme resistance to wear and corrosion
_x000D_Windage adjustable with low-profile knob: no tools required
_x000D_positive detents in both the up and down positions: standard ar sight height when deployed
_x000D_Position: Rear
_x000D_Height (above rail, stowed): ~0.37 in
_x000D_Length (stowed): 2.1 in
_x000D_Weight (w/ hardware): 1.80 oz
_x000D_Mounts on any MIL-STD-1913 Picatinny/STANAG 4694 rail
_x000D_Aperture height over rail: 1.41 in.
_x000D_Small aperture dia.: 0.07 in.
_x000D_Large aperture dia.: 0.19 in.
_x000D_WINDAGE ADJUSTMENT
_x000D_~0.5 MOA (0.566"/100m) per click with a 14.5" sight radius
_x000D_~0.4 MOA (0.410"/100m) per click with a 20" sight radius
