I think this is the right thread. I'd really appreciate it if someone could turn these shoddy pictures into something that looks more presentable. I'm looking for them as role-playing props, not Doom weapons. The first one is most important. All I need is for them to look like sketches, or technical schematics or something. No detailed shading, texturing or lighting effects required. They would just need to look like better versions of the pictures below. They are supposed to be the technical specs of enemy hand-guns which the players in the game will be given so that they know what they are looking for on their quest. No need for any writing or labels on them, I will add that later. Just basic drawings, but better than I can do, are required. (As has been pointed out before, I'm a science teacher, not an art teacher.

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This one is a stubby-looking laser gun. It's about 45 cm/ 18 inches from barrel tip to the back of the butt. It is silver/gun metal in colour (not essential for the sketches) and has a black collar towards the front end of the barrel that acts as a laser charge chamber. The trigger is a little red button. The weapon is almost small enough to be single handed, but is meant to be fired with one hand on the butt/trigger and the front hand around the collar.
This one is a little longer but only by a couple of cm. Rather than having a charge collar it has a wider underslung base kind of thingy. The back has a small arched cowl on it. Inside that is a small repeater LED that shows when the weapon is fired (lasers being silent and almost invisible in this game, it helps to know when you have fired).
This is essentially the same as the above but with sniper attachments: a round telescopic sight and an extended barrel.
Like I said, the most important one is the first "stubby" one. If someone could manage a sketch/schematic of that, I'd be most grateful. The others are "nice to haves" with the basic being most important followed by the sniper version.
Can anyone help me out?
Thanks in advance.