GL2009G - New GlockA(R) Tactical front sight, resin overmold available in either red or green. LitePipe diameter is .120". Fits all Glocks except ported or compensated models. Not recommended of GlockA(R) 34s with cut-away on slide. Height of sight from slide up is .162. HIVIZ Dovetail Sight Installation Warning!! We recommend gunsmith installation of dovetail sights. If a sight pusher is used for installation it must be of the type that pushes on the dovetail itself. Never use a sight pusher that exerts pressure on the blade of a sight. Our sight bases are manufactured from quality steel, but due to the design, sight pushers that exert pressure on the blade will da Mfg: Hiviz