Twitter 上的 Rollo Davies F.ISRM MSyI:"Not security related but I wanted a project so I'm customising & tuning a CO2 Crosman 2240, 22 pistol. If you're interested in my mods, let me
Crosman hammer mods - YouTube
mpk5959 EZ-Cocking hammer system for Crosman 2240 by Martin - YouTube
Tuning - Another Crosman 22xx build with valve power mods | Airgun Forum | Airgun Nation | Best Airgun Site | Airgun Message Board
Adjustable Trigger Spring | For Crosman 2240 2250 1377 Ratcatcher – AirgunParts