SD:Bofors 40mm SP

 is a Polish Anti-air unit.

Overview
Bofors 40mm SP are Bofors guns mounted on Morris C9 4 X 4 truck. These SPAAG allowed for air defense without the need to unlimber the Bofors from it tractor. 1st Polish Light Anti-Aircraft Regiment had two batteries of Bofors 40mm SP along with two more Batteries of towed Bofors.