1 thing i know of for certain is that the m190 full auto has a nub sticking out of the selector switch where as the semi-auto M190 sits flush with the slide. The nub that i am talking about is on the left hand side of the slide, and connects to the left side of the selector switch, via a triangular piece that slides up and down to push on the arm that connects the trigger to the hammer assembly (this is the reason why on the full auto version the selector switch cannot be on safe when removing the slide, if you remove the slide while on safe, you will break that nub and your full auto function will be gone. bum bum BUMMM!). I wish i could find some pictures for you but its such a small piece :P Also one thing to note, to the best of my knowledge if you buy this part from a US retailer or overseas, you cannot convert your Semi auto M190 to a Full Auto M190, ive inspected both models, (i own the semi auto version) and ive came to the conclusion that if installed your pistol will be in "safe" on all 3 postions of the selector switch.
|