Guns and Rifles Airsoft, Airsoft & Paintball, Diana, Sports & Fitness, Sports & Outdoors Diana Chaser CO2 Air Rifle Kit air rifle Review by AngerDaemon June 5, 2018 No Comments This fits your . Make sure this fits by entering your model number. caliber: 0.177 velocity: 560.00 ft/sec CO2 modular rifle Diana Chaser CO2 Rifle Kit.177 Caliber …