Gippeto your gun is amazing!

Thanks for all your imput, I am still in the design phase right now. I all access to mills and the sort, so there isn't a problem in how I am going to make the parts. I wanted to basically make an ar-15 designed lower. Not a real one with all the holes drilled, maybe an 60 percent lower. I'm still m...

Has anyone used a real rifle barrel for these spud guns with slugs? I would like to make a .308 cal air rifle (it would have to be non- combustion.) I would like to use some sort of high pressure solenoid valve and a steel action. Bolt action style. Any links or hints that could help me accomplish t...