I'm looking to put a UL frame from a proto pmr on a super thin custom rail
How far down from the top edge (where the body sits) to the RT sear pin?
is the sear needed, can I just trip the on/off with a pneumatic piston?
What is the front of the sear for? not the "bolt hook", the nose
What would be the easiest way to make the concave rail top using a drill press?