Originally Posted by Skruface
Go to a dollar store, buy a cheap plastic cap gun, and be done with it.
I was in a local dollar store last night grabbing candles to place in my pumpkin and I walked by the toy isle on the way out. I saw an MP5 K with dettachable stock for 5 dollars. It fired little suction cup darts, and had a really bad colour job, but a quick even coat of krylon camoflouge matt black makes it look great, and then just grab a fine paintbrush and some red model paint and go over the fire selection markings.