If you fancy getting a snubnose airsoft revolver, this S&W M60 X-Cartridge available at RedWolf Airsoft for US$126.00 might fit the bill... "A tiny little 5-shell revolver that features actual shells; the X-Cartridge system makes use of a gas reservoir inside the weapon as per normal but BBs are loaded into imitation shells which are loaded into the revolver just like the real thing. In this instance, the weapon and shells are of the 8mm variety.

Despite its low power, as an 8mm weapon its 0.4+ gram BBs ensure that if you are hit you are definitley going to feel it. It will only be effective over short range but it will still hit human sized targets quite easily and for this price its one of the cheapest shell loading weapons around.

With a grip on 7.5 cm / 3 inches long, the 16cm / 6.25 inch revolver is the perfect choice for that tiny little hold out pistol as either a back-up or a primary for a VIP in special scenario games. It only has the 5 shots but at short range those 8mm BBs have quite a punch."