Algodoo

Semiautomatic gun with 10 shot magazine wich uses the recoil to reload itself.
The projectiles use a tensioned spring to propel itself. The firing pin destroys the block wich connects casing and projectile.
pulling the trigger or 'f' releases the hammer.

To reload, cock the magazine feeder all the way to the right and insert new projectiles through the front, release the magazine feeder and cock the bolt.