Algodoo

Light sniper rifle.
You have to fold it before you can shoot.
Don't use hinges, just slide parts in their places.
Scope and silencer are optional.
You can also bulid your own custom parts.
To shoot:
(fold the rifle first)
1.Pull the clip in. (its hard, you have to put it really deep) IMPORTANT: Pull the clip in only if the bolt is in the rearmost position.
2.Close the bolt (move the handle right, and then down to lock the bolt)
3.Pull the trigger.
4.Unlock and move back the bolt.
5.When clip is empty, remove it using little red lever behind the mag housing.

Try to not move the bolt too fast, cuz bullets may fall out.
If you have problems with folding it, be patient, its possible.
And bipod is not really functional.
Have phun.