Ever wanted to make that legendary P.A.C. 5 but didn't have the money? or the time? or even the space required to store it? Well what I have made is a smaller version of the P.A.C. 5, as you may be able to see there is no barrel, this is because I dropped it and the barrel broke off, ohwell
But I think that it looks even better now, I painted it red and blue for no apparent reason, but it still looks nice. The chamber is 3"x4.5' and the barrel is 1.5"x4'. I used a snap in schrader valve to fill it and a ball valve to fire it. NOTE: I DID NOT USE A PISTON IN THIS CANNON!!!!! INSTEAD I USED JUST A SMALL PEICE OF STIFF NEOPRENE, IT SEALS MUCH BETTER THAN A PISTON WOULD AND HOLDS 60 PSI OF AIR OVER NIGHT! 
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