I have quite a few of them only 2 are cut for red dots. This time they threaded the holes 6-32 instead of 4-40 so that was fun. I went and got some SS screws and threaded then all the way until they bottomed out. Then filed threads until they fit. I turned the heads until they measured .320 so they would clear the side and battery cover. Threw some locktite on the threads and torqued to 7 inch pounds.
