I have an old Crosman "180" Pellgun. The old gun shoots much better than I can hold. So, I plan to put a scope or red dot sight on it. I can't figure out which mount will fit my barrel. The B272 or the 459MT. The Crosman web site says the 459mt will fit my 1377 but the barrel on the "180" is a bit larger. Pistol measures .435 while the rifle is about .565. Any help out there?
Regards Jeff
