the good ones are prettymuch the same as the AR bullet button.. all you need is a bullet ("tool") to make it work..
some of the AR bullet buttons have a screw/allen that needs to be removed but they are prettymuch the first drafts of "crap this law blows... o wait ok heres something that makes it legal"
a picture is worth a whole bunch of my words on this one
some of the AR bullet buttons have a screw/allen that needs to be removed but they are prettymuch the first drafts of "crap this law blows... o wait ok heres something that makes it legal"
a picture is worth a whole bunch of my words on this one