Intro: 557 Tyranosaur Railgun
I only built this gun so a person who was challenging my k'nex two in one gun can see my point. But still, even though some of the flimsy, it works really well. I don't expect it to win any awards, but please just try it.
Step 1: Stock
The stock is very flimsy, but it does provide some stability. You are 100% free to make your own though.
Step 2: Handle
The handle is only slightly better than the stock.
Step 3: Barrel
The barrel is actually kind of cool, in my opinion. Make it as long as you want
Step 4: Firing Mech.
It's an odd shape, but that's necessary.
Step 5: Firing Mech Braces
This prevents the firing mech from snapping off under the weight of too many rubber bands.
Step 6: Firing Mech Braces 2
This serves the same purpose as step 5.
Step 7: Put It All Together
Put it all together.
Step 8: Rubber Bands and Ammo
Attach rubber bands inside clips like so.
Step 9: Rubber Band Clips
The rubber band clips allow more bands to the gun.
Step 10: Loading and Firing
Remove the stock before loading.