One of my sons has been gifted a very small pistol. Plastic grips that say Colt, the dancing pony on the grips and slide. Some patent numbers are on one side of the slide, on the other side is marked "Colt Automatic" and below that "Calibre 25". It has a grip safety. The barrel is about 4" and the muzzle is encircled by several short flutes milled into the barrel. On the left side of the frame are the numbers 278443. It has one magazine. It appears to function properly but we have not tried to fire it. So, who can tell us that this thing is.