CM-10, the Mech of a Bolt-action Sling-shot Rifle

I had decided to make a k'nex slingshot rifle with a removable magazine, and by doing that i needed to find a way to load a single round into the rifle at a time, without making it semiautomatic. Which meant the rifle needed a bolt which is what i designed. I am only posting the mech because i had to disassemble the barrel, stock, and trigger to work on another rifle, so, the barrel, stock, and trigger are up to you guys, post pictures and ill add them on the last step of this instructable so other people can get ideas. 

Pros:
 - Quick reload (for a slingshot rifle)
 - Removable magazine (with no broken knex)
Cons:
 - Wider body for more stability (depending on rubber-bands)
 - The mech has to have a correct contrast of rubber-bands to work well. 

Step 1: Magazine

The magazine of the gun, the rubber bands on the magazine slide should be smaller then average, but should be able to push the slide up until you can see the blue, green, and red connectors...

Step 2: Internals, and a Single External Panel

Majority of the internal mech and one side panel (clearly), I will explain rubber-band placement and inserting the magazine on the last step.  

Step 3: The Final Panel and Last Pieces of the Mech

Rubber-bands and inserting the magazine will be described on the last picture.