Originally Posted by dano_____
So is the on/off length dependent on the valve or the rail? I have an emag valve that won't work without a .750 length pin on a am/mm rail.
Rail and on/off top o-ring (quad or not) if memory serves.
It also is dependent on the tip of the back of the sear, but as long as it hasn't been modified, you are only looking at the rail and on/off top o-ring.