Uhhhh... the AA-12 to me looks just like a new version of the 1980's shotgun... not really a step forward. If Law Enforcement and or Military need a combat shotgun they certainly would have the USAS-12 as an option as that one has been out for going on 20 years now.
Barrel length: 460 mm
Length: 960 mm
Weight 6.2kg loaded with 10 rounds
Capacity: 10 round box magazine or 20 round drum