Link to how to make an air power shot gun https://www.youtube.com/watch?v=fLQuygV-Fjk
this gun is made compleetly from parts u can buy at your local hardwere store.
skype backyard armory

PVC round compact ball valve

Visit https://www.smarthvacproducts.com/product/reusable-solder-putty to learn more.

Cool Blue Reusable Solder Putty stops the transfer of heat when soldering joints, copper fittings and valves. The putty is reusable for life and is able to stop heat transfer of over 3000° F within less than an inch. It protects heat sensitive areas such as rubber hoses, fittings, ball valves, condensing valves, plastic to copper transition and painted surfaces. When done using, simply place it back in the jar and use it again as needed . A 1lb jar should last a lifetime.

Cool Blue Reusable Solder PuttyFeatures & Benefits:

More effective than wet rags
Cuts down heat up to 3000 °F from 1/2″ away
100% reusable for life
Rejuvenated with water
Eliminates costly repair, tear downs & replacement of parts
Can be used upside down
Non toxic and biodegradable