MATERIALS:1 A 7" x 3/4" pipe (can be PVC, i used metal, also the pipe dimensions are slightly variable),
2 an easily stretchable spring:1 3/4" x 1/4",
3 a cocking device (pictured below)(I got it from the airsoft gun),
4 a bolt that is longer than the pipe's width,
5 a nut that fits the bolt,
6 philips head screwdriver,
7 and pliers.
8 if your pipe doesn't have holes in it like mine did, than you need a drill and bit that is slightly larger than your bolt.
9 if you don't have the cocking device, you can use a bolt that is longer that the pipe's width by atleast an inch or two
Step 1: Put the Cocking Device and Spring Together
Step 2: Measure Bolt Width and Drill.
Step 3: Insert/attach Cocking Device
<=/=/=/=D here the arrow at the beginning of this line is the tip, end of the bolt, the = sign is the bolt, the / is one side of the pipe, the = is still the bolt, the / is the spring hole, the = sign is the bolt, the / sign is the other end of the pipe, the = is the bolt, and the D is the head of the bolt.
make sure you attach the extended bolt or cocking device BEFORE you put the shorter bolt through the pipe, through the spring hole, and then through the other side of the pipe.
YOU'RE DONE! WOO-HOO