nitro with on/off

[Matt_mg]

Anybody knows a line of screw-in bottles with on/offs???

That'd be usefull
(Why you ask? It's because I am a sinner, I have an impulse for now )

[FalconGuy016]

I have always wondered why there arent many. I mean, my c02 has a smart parts valve for $15! I think it wouldnt be hard to implement one in a nitro bottle (I know I know its a bit harder, but still, why not? Presets are growing now)