Magpul MBUS PRO Rear Sight

Magpul MBUS PRO Rear SightThe MBUS Pro (Magpul Rear 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. The dual-aperture, windage-adjustable Rear and no-tool, elevation-adjustable Front 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. The narrow-width front is compatible with most IR aiming lasers and light installations for professional users.Features All steel construction Selectable Large And Small Same Plane Apertures Positive Detents in Both the Up and Down Positions 375" Height Above Rail At Mid Point When Stowed Standard AR Sight Height When Deployed Windage Adjustable With Low Profile Knob* Mounts on any MIL-STD-1913 Picatinny/STANAG 4694 railSpecifications Aperture height over rail: 1.41 in. Small aperture dia.: 0.07 in. Large aperture dia.: 0.19 in.Windage Adjustment ~0.5 MOA (0.566"/100m) per click with a 14.5" sight radius ~0.4 MOA (0.410"/100m) per click with a 20" sight radiusMADE IN USA