A&K M870 3 Rounds Burst Air Cocking Shotguns SXR-003
 
Metal Body
TM Similar 3 Rounds Burst Air Cocking Shotguns System
24rds Shells (Diameter: 20.95mm)
TM, CYMA, Golden Eagle, 30rds Shells Diameter: 21.4mm Not Fit
(May try it by take out the surface tape when you use)
300FPS