This thing is actually pretty powerful, and can launch a grenade around 15 feet! Really affective in close battles ( I am beast in short hallways!) I hate the frisbee grenades!!! This thing only cost me $1!
Step 1: Materials Needed for Grenade Launcher and Grenade
Dremel with a drill bit slightly larger than a paperclip's diameter
Use a knife to make a hole is you do not have a dremel
Optional: A friend (makes things a lot easier or it can make you feel like you want to blow their face off!!!)
Film canister (with lid ), I got a bunch from a local pharmacy that processes film for free :)
Spring; not too strong but not too week, you should be able to compress it with you fingers with only a small amount of effort
Big paper clip (we want length, not strength, but you don't want it too bendy)
Party popper (Spring type), look at more of my instructables to see how to reset them so you can use them again or again (HINT click on my user name HINT)
Strong paper card that you need to cut up into circles (two or three) that fit inside you film can
Small bits of cut-up nerf darts (I just used some 1/2 inch FBR (Foam backer rod) from home-depot) or you could use airsoft BB's
Step 2: Drilling Holes for Pin and Modding Spring
I used a dremel and drilled holes a cm down from the top.
I marked with a sharpy where the prongs of my paper clip would enter and exit and DRILLED PNEWWWWWWWWUPPP (sound my dremel makes)
Step 4: Ready to Fire
Insert the grenade into the launcher with the pin still IN. when you are ready to fire pull the pin of the grenade, DON'T THROW IT IF THE GRENADE IS IN THE LAUNCHER, TO FIRE THE GRENADE LAUNCHER WITH THE GRENADE IN IT PROCEED TO STEP 5 or just take the grenade out the launcher and throw the grenade (without the pin smart one!)
Step 5: FIRE!!!
If you have decided to keep the grenade still in the launcher (and not throw it) nothing should be happening. To fire the launcher aim the launcher, twist the bottom handle and BOOM the grenade should fly at the aimed area and explode, if not your enemy will grab the grenade and trow it right back at you so DO STEP 4 PROPERLY!!!!!!!
If you want to shoot the launcher with a gun mount (so you don't have to hold it, it is just mounted to your gun) click here (it's basically a AXE deodorant lid attached to a nerf rail mount)