Franchi SPAS-15 Marine Complete Specs and Full Gun Specifications

The weapon is based on the SPAS-12, and has similar pump-action/semi-automatic firing modes. In semi-automatic mode, a gas piston drives a bolt carrier and rotating bolt. In pump-action mode, the same components are driven by sliding the fore-end backwards. Pump-action mode is required to reliably fire low-pressure (less lethal) ammunition such as tear gas rounds or less-lethal bean bags. Switching between firing modes is done by pressing a button above the foregrip, and sliding the foregrip slightly forwards or backwards. The barrel is chrome lined and features screw-in choke tubes