If you have skills with woodworking or a basic knowledge you can free hand a m4/m16/ak47 or mp5 out of wood with a jigsaw and a
drill... I made an ak47 cut out from 1" thick plywood and spraypainted it black... Worked well as a prop and it's made of wood so police had no problems when I walked past them a couple years ago and actually got a compliment on my ak47 cut
out by an officer
"I feel no emotion, just recoil."