Extremely durable. Milled from 6061 T6 block aluminiumQuick and easy installation with just one screw. Compatible with 1913 MIL-STD Picatinny rail-based optics.Perfect for Red Dot's/Flashlight. Original sights remain usableAdditional Machining May Be Required For Some Models, Universal Picatinny Rail Mounting for Pistols Suitable for: Pistols with front rail (rail) Arsenal Firearms AF1 Strike One BERETTA M9 92X 92A1 PX4 CZ 75 SP01 CZ 75 Shadow 2 CZ P10C, P10F CZ P07, P09 G17 G19 G22 G31 G34 G35 HK P30.P30L HK SFP9, VPP9L Keltec PMR30 P226 with rail Xfive LDC2, LDC1/Tacops Walther PPQ M2, Q2 1911 Pistols with rail (tested with 5" models).