I bought this sight to go on the guarder aluminium slide for my Tokyo Marui G17.
Normally I dont like to leave reviews unless an item has make an impression, and in this case, this sight has, in a negative way. Dont get me wrong, the sight itself fits perfectly and it feels and looks good, and the white dots are shine nicely in low light conditions, so i can not fault it. But the little screw that comes to fit the front sight its a dome head, so the screw head doesnt fit flush with inside of the slide, so with the movement of the slide going back and forth, the little screw head scratches the outer barrel and it causes the slide to jam. I tought the jamming was being caused by other parts that i fitted, eventualy i noticed the problem, when saw the big scratch on top of my new outer barrel. tried to find a screw with a different screw head that will fit flush, like a wafer head screw, unfortunatly i couldnt find the right size. so, eventually i bought a different sight, that one came with a wafer haed screw, fitted the new sight, no problems, no jams, it shoots prefectly. Guarder has to change the screw that comes with the front sight. I had to write this review so other people dont have the same problem with this sight. The picture shows the scratch but it looks worst in real life.