Need a suggestion on my build
I'm a gun/bomb player and I need suggestions on my build.
1. My gun is the pepperbox line (UV: atk speed low) ( I love it and not gonna change it )
2. My bomb is the blast bomb line but I have a hard time deciding between nitronome and irontech destroyer. (UV: damage vs slime high)
3. My helm is the demo helm line but I can't decide between Mad bomber mask and Volcanic Demo helm
4. My armor is the gunslinger line but I can't decide between Nameless poncho or deadshot mantle
5. My shield is the Owlite line (probably not gonna change it)
Any suggestions on my bomb / helm / armor ???

2) Nitronome
3) Up to you. You should have distance at all times with this setup, so you might be able to use the Mad Bomber Mask effectively with reduced threat of the drawbacks. Unless planning to do Vanaduke a lot later; then Volcanic.
4) Nameless
thank you guys. Any other comments?
Can't advice you about the armor, I'm not an experienced gunslinger, I just have a support gun for dealing with puppies. Although the Poncho looks more usable to me overall.
As for your other choices:
Nitronome + Mad Bomber.
Irontech + Volcanic Demo.
The reason I'd do this: my preference goes to the Volcanic armor, again for overall utility (fire resistance can be a life saver, so it depends on which levels you visit). But the ability to spam out Nitronomes... dunno if you've seen that happen before, it's just hilarious. Stand in the center of a danger room or arena and just keep bombing that spot - you're untouchable. Have another buddy with Ash of Agni or Shivermist and enjoy. Mad Bomber is just the best for that little extra speed.
nitrome + mad bomber set.
Bombs and guns make it extremely safe for you in most situations.
2. Nitronome
3. Volcanic Demo
4. Nameless Poncho