Magpul AR-15 MBUS Front Sight

Flip-up sight is primarily designed for use on the AR-15. The MBUS (Magpul Back-Up Sight) is a low-cost, color injection molded, folding back-up sight. The MBUS Front Sight is adjustable for elevation. Fits most 1913 Picatinny-railed hand guards, but is specifically tailored to the AR15/M16 platform. Impact-resistant polymer is lightweight and resists operational abuse; Spring-loaded flip-up sight is easily activated from either side or by pressing the top; Spring pressure keeps sight erect, but allows for unobstructed folding under impact, etc.; Sight clamps to most any MIL-STD-1913 Picatinny/STANAG 4694 railed hand guard; Sight provides the same height-over-bore as standard A2 iron sights; Protective wings shield the spring-locking A2 front sight post; Elevation adjustment tool included. Can also use most aftermarket A2 front sight adjustment tools; Elevation adjustment: ~1.6 MOA (1.886"/100m) per click with a 14.5" sight radius; ~1.2 MOA (1.367"/100m) per click with a 20" sight radius; Height above rail, stowed: ~0.51"; Length: Stowed: 2.6", deployed: 1.5"; Weight with hardware: 1.2 ozs.; Mfg. Number: MAG247; Magpul AR-15 MBUS Front Sight