An SR-V1 modification. There are tons of possibilities available for this gun, and this is just one. The barrel, entire stock assembly, and handle have been modified. I am not responsible for any injuries or accidents that the usage or construction of this gun may cause. Sore thumbs are no excuse. Have fun!
Screamin' Serpent rollercoaster recommended for crazy blue connectors.

Step 1: Barrel

80 yellow connectors used. For 3 sections, use 60, for 2, use 40, etc. I suggest you go no less than 40 unless you're desperate. You'll need to save a couple of yellows for the stock and handle.

Step 2: Main Section

End of the barrel. Same mechanism. As I said already, you can substitute the black/white connectors for blue ones, or vice versa. Your choice, depending on your parts collection. Read the yellow boxes.

Step 3: Stock

...stock. Not much else to say. You'll need four yellow half-moons, five blue rods, four yellow rods, four orange connectors, or, you can modify my design. Yellow boxes again.

Step 4: Handle and Trigger

This is a customized handle. For the trigger, follow the yellow boxes. Use gray connectors for the lifter's bottom, or else it will get jammed in blue connectors.
Hey, is recycling pictures THAT bad??

Step 5: Sights, Assembly

The sights, which are easily modified. Again and again, I should repeat this every step, millions o' possibilities. For assembly, follow the yellow boxes. Remember: Blue rods, and green/black rod attachments. If you're crazy about sturdiness, put green/black rods between each blue connector. I suggest you don't though, for when it is time for disassembly...

Step 6: Sneak Peek

A little preview of what's to come.

The SM-12 High Power Machine gun
and
The SM-22 Flechette Pump-Action Shotgun
www.howstuffworks.com

Bah, blurry picture. Oh well. It's secret, right?