Good job! you should have added a threaded barrel (for mounting a silencer - yes, I know this is an unusual option for a revolver, but there are precedents!) and a set of tactical rails - for mounting of optics and accessories on the gun . otherwise, it is a very good design for a military sidearm.
This design looks amazing. One minor concern; the point where the bullet is fired is awfully close to the user's trigger finger. Wouldn't overheating be a problem?
Chiappa Rhino 50DS uses the same system. Firing the bullet from the low chamber significantly reduces recoil and adds to the controlability of the weapon.
Very nice! And I don't care for revolvers. Is that over-top cylinder swing-out your concept? If so, may I apply it to a clone of a Mateba for a KP fic?