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 2240, 2260, 2250 POWER hammer spring with guide, 10 % power increase | eBay
Wimpier Hammer Spring for Crosman 2300? | Airgun Talk | Airgun Warriors Forum
How to change the Crosman 2240 and 1377 Hammer spring - YouTube
Crosman trigger - another go at it - Airguns & Guns Forum
Wimpier Hammer Spring for Crosman 2300? | Airgun Talk | Airgun Warriors Forum
Ordering a trigger upgrade for CROSMAN 2240 hoping it works and is easy to install. : r/airguns
High Performance Hammer Spring
Crosman Upgrade Hammer Spring Guide to Fit 2240 2250 - Etsy