There is an element call FRAY and if you heat it, it pushes any powder element, but if you want to push BOMB, it has to have a little amount of DMND in between the BOMB and FRAY so it won't selfdestruct before you fire. If you want, you can put a little DMND in front to keep it in place. It will not affect the movement of the bomb unless you have more than one pixel of DMND blocking it. :)

Here a a bomb gun i made:

Its very easy, just make 1 px o PCLN making bomb, and put FRAY behind it. Make sure to heat FRAY. The most you heat, faster goes the bullet. Than, just shot someone! 

Edit: to make it shot, energize FRAY using a METL cabe, or PSCN one..

hey guys i'm trying it really hard but I'm not getting anywhere. I mean the thing is shooting but it won't create anymore bomb. could you please give some detailed instructions on what exactly to do please.

How are you making the gun?

@jman42 (View Post)

@urztrulyanurag (View Post)

That's my gun. you can turn of deco layer and observe.

this is my really old (one of my first saves) tutorial on how to make a bomb firing gun. hope that helps.