Magglerock
06-01-2004, 05:23 PM
Anyone know the size of the back-bottle screws? These are the screws used to hold a back-bottle adaptor (asa) onto a mag. They are the same size as the screw for a forgrip. I'm looking for the diameter and thread-pattern, not what size wrench turns the head. I was told 1/4-20, but I don't know. Tuna? Anyone?