thats hella large my friend :O

i had seen yours previously, but used a different fitting instead of dat nipple!

thanks for the feed back man! it aint my first gun, but its my first gun in a while, was out of spudding for quite a few months

check it out folks, heres a cannon im working on, will eventually be piloted by a slide valve, filled by c02, and have a blow forward marble feeder thing. if i take apart the piston any time soon ill snap some pics for yall. dont let the video deceive you, its quite loud in person! [youtube]http://w...

thanks mate

workin on an all metal semi auto marble gun that this'll be lush for!

American fittings are npt, correct? is bspp at all compatible with npt fittings, or would i have to buy some crazy ass fitting to bridge the two?

will this slide valve:

http://www.ebay.com/itm/33-64-Pneumatic ... 5ae3de3c4c

fit into a standing 1/2" fitting? The difference is so small that it just might work...

thanks in advance!