im thinking intimidator/spyder detents... yes they will wear out but they are:
2) made for multiple markers (macdev clone, all CCM's,
Bought a cf forward grip, everything went perfect with out a hook! A++ seller!
Will buy again from him. I hope soon!
I forget the polymer we mixed a while back.
but it is tested to this exact thought,
plus many others.
detent placement can be