Photo: Picanox, CC BY-SA 4.0, via Wikimedia Commons. Model photo, not the agency's own firearm.

Shotguns

Remington 870 Police

12 gauge

Agencies currently issuing (2)

California Highway Patrol · State police / highway patrol · California · Patrol long gun
Official source
Cedar Rapids Police Department · Local police · Iowa · Patrol long gun
Official source

Retailer links coming soon. (Placeholder slot — affiliate links render here once approved and marked active.)