This is a homemade grenade launcher for your airsoft guns. It has an inner high pressure chamber. This launcher uses 12g Co2 cartidges to pressurize the chamber. You can either glue the shell down or make an interchangeable system. ALWAYS refer yourself to the images. A picture is worth a thousand words!!! ;)

Video demonstration

Step 1: Materials

For this instructables you will need the following materials:
-2 piece of 1.5 inch abs pipe (1 feet long each)
-2 1.5" coupler
-2 1/2" metal ball valve
-2 1/2" nipple
-2 3/4" to 1/2 reducer
-1 3/4" nipple 2 1/2" long
-Teflon tape
-Thumb tac
-Abs cement
-1 Dollarama spring party popper
-2 electrical wire cap
-1 toillet or sink pipe (refer to picture) 20" long
-Co2 cartridge
-Electrical tape

Tools needed:
-Hot glue gun
-Dremel with sanding disk

First, you will need to assemble the pieces like so.
<p>Whats the FPS or minimum range and what bb's did you use </p>
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where do you get a dollarama party popper?
more like a master key (shotgun under barrel attachment)
costs about $17.76 from tractor supply
what is the average cost
ol all my teamates were look at me like what the heck are you doing
How much does the shell weigh?&nbsp;Im trying to build something similar but idk how much a 16g Co2 cartridge can shoot.<br />
about the co2 cartridge: where to get it? is it used for paintball guns? or maybe for a soda machine?
those ones, sometimes are used for paintball guns, but they are more commonly used for bb guns and air rifles. they are also relatively common for CO2 powered airsoft guns. you should be able to find them either online, or the sporting goods section of your local department store, by the airsoft and paintball guns.
my local deparrtment store doesnt have airsoft, i have to go to a weapon store (they sell real weapons, paintball and airsoft). i now use a 300grams CO2 soda-machine-cartridge. ill post an instructable soon
why do soda machines need a co2 cartridge?<br />
....sigh....WALMART and if you're canadian....CANDATIAN TIRE
What about attaching it to the gun? you would need a rail grip. Where can I find a how to on the rail grip?
buy a rail, glue it on, done
or a screw tube (metal band which is tightened around the fixture using a screw<br />
&nbsp;how do those ball valves hold up to the pressure of the co2? where did you get them?
how many shots well you get out of one co2 can
How much would this cost?
could I use these valves?<br/><a rel="nofollow" href="http://www.minitruckin.net/product_info.php?cPath=34_35&amp;products_id=133">http://www.minitruckin.net/product_info.php?cPath=34_35&amp;products_id=133</a><br/>
those would be ausome
kinda big. youre forgeting the whole purpose of the gun. AS SMAL AS POSSILBE
i don't see why not
Is the shell thing like an airsoft shower
what pressure is a normal co2 cartrige at
looks cool im gonna try it =]&lt;br/&gt;a vid would be great &lt;br/&gt;<br/>
I take the risk of sounding stupid, but could you explain how the grenades themselves work a little more?
the co2 cartridge is used to shoot all the airsofts out of the party popper. It's essentialy a small pneumatic potato cannon.
what about attachment? is there a rail attachment to these steps?
wow with just a 12. gram
How many shots can you get from one CO2 cartridge?
about 5 to 7
Wow thats more thani thought it would. Great job!!!
thanks i'v been looking 4 something like this
how many times do u have to pump to pressurize it?
u dont have to pump it. IT USES CO2. just open the back valve and colse it. this will pressurize the chamber. ;-)
nice, i hate those overpriced commercial ones.

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