After 25 years of AR ownership I finally bought an ambidextrous safety recently, but I'm still not fully happy. The lever on the left side of the reciever still bugs my left hand trigger finger during shooting. Now there is a source for a full auto ambi safety, and before I go calling attention to myself by calling BATF, I'm hoping to get an authoritative answer here. Am I legally OK installing the M16 selector on an AR15, so that I can rotate it to what would be the full auto position on an M16, and get it out of the way of my trigger finger?
If need be , I can mill off the shoulder that depresses the disconnector arm, although since the arm on an AR doesn't go back far enough hit that shoulder anyway, it would be purely a cosmetic mod. All I'm after is a safety with two (semi) fire positions so I can rotate it all the way around.
Yes, I know I can mill off the left side arm, but after all thase years I'm still most comfortable APPLYING the safety with my left index finger. Flipping the safety off with my left thumb is still fastest, so I really want to keep both sides as is.
Opinions???