These are grips for a Star Firestar M45 .45 caliber pistol. They are made of Black Walnut and are hand made from start to finish. They have a satin finish. I have made them with slightly generous tolerances to try and make sure that they will fit your pistol as Spanish pistols are famous for ever so small differences in things like screw hole locations, magazine release size etc. They have been tested on my personal Firestar for function with the magazine in place. They are not shaped the same as stock grips, I have made them to better fill your hand and make it easier to hit the magazine release.