This is my first k'nex gun, and as the title says, it also has a magazine on top.
I used 4 rubber bands, but you can add as many as you want.
True trigger :D
almost never jams
handle's not super-duper
loading can be annoying sometimes
For my next instructable, I think I'll try to tackle this:
...except it will shoot, but it probably won't have any type of actual rapid fire :
Step 1: Handle
Easy, just follow the pictures.
I don't even think you'll need notes for this part, let alone the entire gun.
Step 2: Trigger
Three pieces you will make, one step at a time.
Rest of pictures:
How to make piece at the bottom of clump of 3 pieces, the trigger
Step 3: Front of Barrel
Step 4: Back of Gun
Step 5: Magazine
Step 6: Misc Pieces
Ram Rod and ammo pusher
Step 7: Piecing It Together...
Step 8: ...And You're Done!
I hope ya enjoyed it. :)