Specifications include, but are not limited to: L640-1 40mm multi shot spring advance launcher, 6" cylinder, fixed stock L640-3 40mm multi shot spring advance launcher, 6" cylinder, collapsible stock Caliber & Ammunition 40mm munitions up to 6" (152.4 mm) in length Action Break-action loading. Spring cylinder advance actuated by trigger pull. Safeties Push button, cross bolt trigger safety. Cartridge Alignment Safety keeps primer out of line with firing pin until trigger is pulled. Barrel 12" (304.8 mm) rifled bore. 6 grooves, uniform right hand twist, 1 turn in 48" Materials Barrel: 6061-T6 Aluminum, Type Ill Hard Coat Anodize Frame/Fire Control Group - Steel Foregrip & Trigger Grip: Super Tough (ST) Glass Filled Nylon Resin Length Fixed: 333'4" (857.25mm) Collapsible: 303'4" (781.05 mm) stock retracted, 333'4" stock extended (857.25mm) Unloaded Weight 10.182 lbs (4.6 kg) Capacity Six (6) shots Sight Options Adjustable aperture sight Rail Options Picatinny top rail Stock Fixed or Collapsible stock Color Options Options available upon customer request