lozz08, its not bolt action, I just used bad terminology, I was referring to the piston. Cheers for the advice on the 3-way, I hadnt yet thought about what to use there. Had some trouble finding something appropriate untill I came across clippards range of miniature valves http://www.clippard.com/ca...

I want to make a small(ish) semi auto QEV, that requires relatively little fabrication, for use with <45psi I plan to use a Palmers CO2 cartridge regulator http://www.palmer-pursuit.com/cart/index.php?main_page=product_info&cPath=8_25_27&products_id=618 for my source. I want to be able to cycle the ...