I got a remington 700 trigger that came off a late 60s BDL rifle, the safety selector switch is (shaped kinda like a L) and if i install trigger,, the kicker part hits the receiver and wont let the switch go to safety, can anyone tell me what the purpose of this does, or what gun this came off,,, i have seen other triggers that look just like this one that dont have this on the switch or it has been removed, thanks