This is this .22 caliber pistol that fires common pellets, associated with a rupture disc. The advantage is that the weapon can be supplied in the same way as a common, commercial compressed air gun.
It has an inverted lock, for this purpose.
It's a pump gun. With 9 pumps it has 10X which is the pre-compression pressure of the hybrid.
The small air pump has a 17 mm diameter piston, and the butane dosing system is the one I usually use for these pump weapons.
The firing barrel is ribbed, 310 mm long, which makes it shoot with very good speed.
The lighter is a piezo electric and has a motorcycle spark plug to ignite the air and butane mixture.
The challenge was to include everything necessary on board a handgun. The small butane tank is on the inside of the handle, and is a conveniently modified asthma medication spray.
The main advantage is the ease of operation, and the very low cost of the weapon.
It has a single o-ring at the exit of the combustion chamber, and nothing else...
The pellets are attached to the 11 mm diameter rupture disc, so as not to have to load the pellet and then the rupture disc. It is two layers of thin aluminum foil.
The open sight has fiber optics for better viewing.
The pumping is with little force. I was unable to obtain a 19 or 20 mm tube for the air pump to improve the volumetric capacity of the air pump, and there was no alternative but to use a 17 mm tube.
The operation is in three parts:
1- Load a pellet/rupture disc.
2- Press the gas valve for 1 second.
3- Pump 8 or 9 times and you can take the shot.
A commercial silencer can be included that greatly reduces the sound. If this suppressor, it is quite noisy.
