The SPAS-15 is a 12 gauge combat shotgun manufactured by the Italian company Luigi Franchi S.P.A.. It is based on the more popular SPAS-12, and also has a dual fire mode. 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 bean bags.
Unlike its predecessor, the SPAS-15 is fed by a detachable magazine with higher capacity compared to the gun's internal tube. The shotgun features either a black fixed stock, or a side-folding metal stock, and a carry handle.
This tag implicates shotgun (learn more).
