My .22 cal build

To satisfy my need to build/ create I built my own air gun. Since most of my air gun experience is with Crosman air guns I used their design as a starting point.

 I used the pump linkage from a Crosman 1400

 An aluminum piston with double O rings.

 I used parts from several different valves, no real reason for the choice of parts I just used the parts that gave me the most volume. The next build I do will spend more time figuring out what the volume of the valve should be.

 I made the valve flat topped to match the piston.

 A 3/4" ball end mill made the groove for the pump tube.

 Chucked up in the 4 jaw to bore the hole for the barrel.

 A quick check to make sure the parts fit.