American Tactical Bull-Dog 12 Gauge Bullpup Semi-Automatic Shotgun – 18.5" Barrel, Detachable Magazines, Matte Black
The American Tactical Bull-Dog packs a full-length 18.5-inch barrel into a compact 29-inch bullpup platform, giving shooters 12-gauge power in a maneuverable package. Gas-operated, magazine-fed, and equipped with modern M-LOK/Picatinny mounting points, this shotgun combines practical ergonomics with modular versatility—ideal for anyone who wants a short overall length without sacrificing barrel performance.
Its non-reciprocating forward charging handle, ambidextrous safety, and adjustable cheek rest make the Bull-Dog user-friendly for right- or left-handed operators. A steel, threaded barrel under a vented shroud is ready for chokes or muzzle devices, while the aluminum upper receiver allows the polymer chassis to be swapped if desired. Four proprietary 5-round magazines are included, each featuring a molded Picatinny section that doubles as a vertical fore-grip. Factory flip-up sights ride on the full-length top rail, so the shotgun is range-ready out of the box.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent – Clean, mirror finish, no signs of wear.
Specific Condition Notes: Minor superficial scratches and blemishes are present from previous handling, but they do not affect function or appearance in any meaningful way.
What’s Included
- American Tactical Bull-Dog 12 Gauge bullpup shotgun
- Four 5-round detachable box magazines
- Factory flip-up polymer front and rear sights (installed)
The bullpup design keeps overall length to just 29 inches while maintaining the legal 18.5-inch barrel, making the Bull-Dog easy to maneuver in confined spaces.
Gas-operated, semi-automatic action feeds from detachable 5-round box magazines, giving a total capacity of 5+1 rounds and fast reloads comparable to modern rifles.
A full-length Picatinny top rail and M-LOK slots on the polymer handguard provide ample real estate for optics, lights, and accessories, while the magazines’ built-in Picatinny section can serve as a forward grip.
The steel, threaded barrel is protected by a vented shroud and accepts common 12-gauge chokes or muzzle devices. The upper receiver is aluminum for strength; the lower chassis and stock are lightweight polymer with an adjustable cheek rest and recoil-absorbing butt-pad.
User-centric controls include an ambidextrous manual safety and a non-reciprocating, forward-positioned charging handle similar to modern AR-style designs.




