SpudFiles

is it possible to have multiple small barrels in a piston or diaphragm.
like you could have 4-6 6mm airsoft barrels inside a 1" pston gun making an airsoft grenade

i would really apretiate feedback

I not sure if you mean a "grenade" you can throw or just a gun that you hold that makes a "grenade" effect. If you’re talking about a gun with 4 to 6 barrels and a 1" valve I think that would work just fine.

if you can cut pipe straight enough ans smooth enough, yes, or use a really squishy rubber.

You could use one of these.
http://www.spudfiles.com/forums/viewtopic.php?t=2424&

thanks for the info. i looked at those fittings a few days ago and they would be perfect, however they are for large pipes.

incase you were wondering i was thinging about making a "airsoft grenade launcher" which is basicaly alot of barrels and airsoft bb's inside of them. the bb's are then propelled out of the barrels by a burst of gas., creating a scatter pattern