Not my style. I'll help you.
Mauser, 870, M14/M1A, FAL
Are you using Photoshop?
No. I'm using Microsoft Digital Image Pro 10. I know, I did start that thread about GIMP a couple of weeks ago, but I'm still not proficient with it.
Didn't think of any military rifles, besides the AR. Lemme see what I can come up with.