CHECKING OUT A SITE recently they showed this EAA pistol with two different barrels--- 9mm and 22LR. Does anyone have experience this weapon or one that comes with the two barrel option? How well do they work? Any problems switching back and forth? This model has a 4.5" barrel,OL of 8.1" and wt. of 33 oz. This could be a really practical weapon for many of us. The stated price was under $400.