A&K Sawed Off M870 Type Full Metal 400 FPS Airsoft Training Shotgun (Version: Real Wood), Airsoft Guns, Airsoft Shotguns - Evike.com Airsoft Superstore
Double Barrel Shotgun Shell Ejecting Toy Nerf Gun Soft Bullet Toy Gun, Sawed -Off Shotgun Foam Darts Blaster with Cartridge Cases - AliExpress
The Walking Dead - Rick's Shotgun Dart Blaster - Walmart.com
Dino-Attack Claw Hunter. singled, sawed off, and blue'd. Internals are still a WIP : r/Nerf