This project hasn't died yet! So I've got all the parts and I've succesfully built my makeshift-hpa-engine which, to my suprise, works quite well. I've got pretty consistent 300-350 fps at around 4 bar. I haven't checked max fps at 10 bar yet, but I'm doing it tomorrow and I am quite sure it will ex...

Well It may be not quite visible on my drawing, but bolt is open and cylinder is retracted (no pressure) the other end of cylinder is sealed, so it acts as natural spring retracting cylinder. When it is connected to air supply, it will extend pushing qev and nozzle with bb into barrel and nozzle wil...

Hi! I am Piotr and this is my first post on SpudFiles. I am building semi-auto magazine-fed airsoft rifle with hop-up. I have recently came up with an idea of using pneumatic cylinder for reloading and as an air chamber. I have question, whether will it work good or not? and what is recommended air ...