I recently got a KWC Colt 1911 licensed airsoft gun from Pyramydair.com.
One of the blowback, CO2 designs.
Very realistic for home practice.
All the controls are identical to the firearm.
About like shooting a .22 for under $100.
Just a fraction of the price of a 1911 .22 conversion with the same effect.
Lock the doors, they're coming in the windows.