The SIg Sauer P226 CO2 pellet gun is a great replica of the real P226 with blow back action and BB/Pellet fed magazines. It shoots both BB’s and pellets powered with CO2 cartridges.
If you’re interested in a combat/assault type pellet gun that looks and feels authentic then take a good look at the Sig Sauer MPX ASP pellet gun. Buy one online and save $20….Sig Sauer MPX ASP Pellet Gun at Amazon.com
The Umarex Steel Storm is an auto, well 6 shot burst at full auto, CO2 powered pistol. You can select either single shot or 6 round bursts. With proper trigger control, you can get full auto. This is a very cool air pistol. The CO2 cartridges are stored inside the pistol grip. It’s great for blasting bottles, cans, oranges, clay targets, etc. It has a reservoir for 300 BB’s. The muzzle velocity is 430 fps and retails for $129.
Watch this demonstration of the Umarex Steel Storm Auto .177 BB gun.