FAB Defense FXFBS Front BackUp Sight for AR15 M16 M4 Low Folded Profile SpringLocked Deployment Black Polymer Metal

FBS is an advanced lowprofile durable auxiliary front sight. It can be used with any rear sight but has been designed to provide an extreme optical advantage. Its sight pin elevation is easily and quickly adjusted without tools. The FBS is readily mounted on any 1913 Picatinny rail making it ideal for use on M4AR15M16 platforms. The sight can be used as a primary or backup sight and the ergonomic angelwingshaped front shroud helps center the image with any rear sight. When used with a matching FAB Defense RBS Rear Backup Sight it creates a precise optical tunnel that ensures more accurate aiming and faster target acquisition. The low folded profile is smooth and inconspicuous and will not snag on gear webbing or brush. The sight is also made of extremely durable highgrade polymer and metal and has an instant springlocked deployment mechanism that will not slip break or deform.