The recover rail is engineered to fit perfectly on any glock 43/43x/48.Will not fit mos models or glock 42.Easy to install with the supplied hardware.No modifications to your glock required, will not damage your firearm.Recommended lights recommended lights olight pl mini 2, streamlight tlr3, tlr4, viridian c5l, viridain ctl, viridian ctl, crimson trace cmr-202crimson trace cmr-202, streamlight tlr-7 and streamlight tlr-8 with the recover tactical keyModel: Rail AdapterMaterial: Polymer