It's been years since I have logged into this forum, so please remind me if for sale ads are not allowed here. I went through a box in my old garage and found this old 2" Hunter Sprinkler valve that has already been modified for our purposes. It worked perfectly the last time it was used, but it has...

As mentioned above a QEV would be better and more cost effective than a metal sprinkler.

But if you really want an inline valve...I happen to have a 2" plastic sprinkler valve laying around from an old golfball launcher that I need to sell

jackssmirkingrevenge wrote:Is the barrel properly centred and supported? Could the washer keeping the sealing face rubber be making contact with the breech edge?

Ahh What should I use as a barrel support?

Pictures will come but I cant seem to find my camera.

Breech end was cut in a mitre box and then sanded. Im filling with a large air compressor, so I don't think that is the issue. Im dumbfounded

Gun completely built but piston wont seal

I have checked for particles and cleaned it which didn't fix the issue.

Ideas?

One great way to reduce the piston weight is to reduce the diameter. The added benefit is the piston OD and the barrel seal diameters have a lower ratio. See my Mouse Musket thread in my sig for more information on that design. It is a 1 inch barrel in a 2 inch coaxial chamber with a 1.5 inch pisto...

I'm sure hot glue would work seeing as many people have made pistons entirely from hot glue. I recently made one and its doing quite well under all the stress of ~200PSI. That was my logic also. Thanks for the help everyone if theres any more pointers/criticism/tips let me know! You've already save...

No offense taken I posted this for criticism. It is pvc and I used thin wall for it to be light but apparently that was a bad idea. it could easily be capped/filled or both. Nothing is glued so the oring can easily be moved. since its a coaxial it will be housed in the 2" pipe and I was going to put...

I have 4ft of sdr 21 left in my garage right now ;) but do you think with only say 3ft of barrel my C:B ratio would be okay? What I want to shoot depends on what size pipe would give me the best ratio with a 36" barrel. If its 1" then batteries, 1.5" potatoes, sdr 21 golfballs. I will add that washe...

After building pretty much every type of gun besides a hybrid or a piston (I never get around to posting my guns lol), I think its time for me to try a piston gun. Since I already have almost all the parts laying around I've already constructed the piston but nothing is glued yet (pics below). Do yo...

Gidney14 wrote:

Gun Freak wrote:What is a 2 1/2" x 2 1/2" bushing

I think he meant coupler...
Speaking of which......

oops ur right i meant coupler

I replied to your PM. All items still available!

Since its inside the US around $2.50. So the item would be $7.50 total if you would like to purchase it now tell me and I will post the private auction on ebay. The propane adapter is made from the torch attachment which has been cut and JB welded to the female adapter. I used it for my propane mete...

I need money for my new gun so I'm selling some parts. All prices negotiable and don't include shipping. Better deals if you buy multiple items. Items located in United States, WV but I will ship internationally. Any questions feel free to ask. All offers will be considered and pictures available up...

I was going to start my own thread but this looked like a better place. If this should be put in a different section please notify me. I abandoned some in the process designs and am selling some fittings. PM me with an offer, best offer wins, shipping from US to anywhere. Items for sale (all are NSF...