Make a gun 2d or 3d :? Which view is looking more good

Hi Everyone ,
I want to make a 2d fully action game for mobile development and i don't know how can i make a suitable gun for unity . What i use i have some options please suggest me . I can use blender to make a 3d cool gun (But lots of work ) i use gimp or Photoshop tools to track a 2d gun from image then make it something realistic but that's 2d and no more work under an hour or some more . I can't select what can i do .

 

Wouldn't it make more sense to first focus on the more important stuff, like the main playable character, and then worry about props like guns? Unless of course the gun is the main character, which does sound like a neat idea, albeit in an avant-garde sort of way.

 

Some screenshots would definitely help...