hey guys, ive noticed the last two times i go to the range to shoot my M4, after about a hundred rounds the pin holding my trigger in place manages to walk it self pretty far out of place, almost completely out. what can/should i do to fix this problem?
Make sure the hammer spring is correctly oriented. If it’s reversed, the trigger pin will often walk out and you may get light primer strikes. It’s also possible to get a trigger pin with an unusually shallow grove cut in it, which prevents the spring from staying put.