CO1K77 Crosman "Optimus" pneumatic screw
Manufacturer: Crosman
Ammunition type: Lead bullets
Caliber: 4.5mm
Butt Material: Wood
Weight, kg: 2.95 kg
Fuse: yes
Overall length: 1092 mm
Spring type: coil spring
Muzzle velocity: 305 m/s
Magazine capacity: 1
Type of pneumatics: Spring-piston