Firearm and improvements therein

A firearm provided with a cylinder mounting block;

• a barrel member extending from said block and having plural bores of differing sizes;
• a trigger mechanism and firing means mounted to said block;
• and end-for-end reversible cylinder releasably mounted in said block and having plural sets of bores of differing caliber, said cylinder also having a central axis aperture;
• an elongate, end-for-end reversible cylinder mounting piece provided with a medial ring, bosses on opposite sides of and of lesser respective cross-sections than said ring which fit respective ones of said barrel member bores, and also having oppositely extending cylinder-journaling shafts of similar diameter relative to said cylinder aperture and extending oppositely from a respective one of said bosses, said cylinder having respective enlarged recesses at its opposite ends concentric with said cylinder aperture and dimentioned to receive, and a respective one receiving, a respective one of said bosses, said ring abutting said barrel member about a respective one of said barrel member bores.

A firearm including, in combination:

• a frame provided with a trigger and firing mechanism;
• an end-for-end reversible cartridge cylinder disposed in said frame and having cartridge bores of differing sizes;
• an axially rotatable, plural bore barrel member attached to said frame;
• and end-for-end reversible cylinder mounting means disposed in said frame, revolvably mounting said cylinder, and fitted into the then non-firing bore of said barrel member.