The MBUS Front Sight is adjustable for elevation and fits most 1913 Picatinny-railed hand guards but is specifically designed to fit the AR15 / M16 platform.Made of lightweight yet durable polymer this flip-up sight is effective and reliable. Also included are an adjustment tool and mounting hardware.Magpul MBUS Front Flip-Up SightPolymer Black FinishFits Most 1913 Picatinny-Railed Hand GuardsSpring-LoadedThis MBUS flip-up sight from the always-reliable Magpul brand is a great way to customize your AR15.Order your flip-up sights online today!Score big savings and fast shipping when you shop our large selection of cheap bulk .223/5.56 ammo for sale.Looking for more AR-15 magazines? Get big savings when on our entire online inventory of low-priced AR15 Mags for sale