[REQUEST] from double barrel in another rifle to pomp

hi to all mpgh, do I make this topic for a specific motive then, that is that to turn the double barrel into this photo can be possible? and if he is able with the characteristics always changed if he is able?

thanks in advance

excuse here is me the link of the photo I hope that I am possible:

http://img704.imageshack.us/img704/2679/65649974.jpg

Wrong section this should go in the discussion area. And it is possible to change the double barrel to any shotgun you want. This will however only change the fire rate and possibly the reload time. Damage, recoil, accuracy, range etc. will not change through modding.