HIVIZ Ruger LCR Front Sight Fits the Ruger LCR and LCRx in .38,.357 and 9mm caliber. It does not fit the LCR 22 or 22 Mag. Rsr group is a nationwide distributor of firearms and Shooting sports accessories This product is manufactured in United States Lightpipe has a square profile Base is pre-drilled for easy installation Steel base Fits Ruger LCR revolvers HiViz recommends gunsmith installation for all dovetail sights. Due to manufacturing tolerances, some firearms may require additional fitting.