auto177Beretta M9A3 Full Auto .177 CO2 Air Pistol Kit Full-AutoSemi-automatic repeater Blowback action slide Authentic FDE Color Scheme Threaded muzzle for mock suppressorIt’s time to spend less time hassling with CO2 cartridges and more time shooting. The 400e, as the first production full-auto .177 BB gun powered entirely by electricity, offers unmatched convenience. The 400e Gen 2 Metal gives