Air Arms Alfa Project pistol

[hwtyger]

Had the CO2 version. Preferred the Tau 7.

[AndrewE]

When the air in the cylinder drops below a certain lever there is not enough pressure to keep the firing valve shut. This lets all the remaining air escape up the barrel. This has caught me by surprise one night when I had gun in the cabinet in the wardrobe, that had a slow leak, got to this point and discharged itself without warning.