ATI Bulldog Bullpup Shotgun | 20 Gauge | 18.5″ Barrel

The ATI Bulldog is a bullpup-configured, semi-automatic 20 gauge shotgun designed for compact handling without sacrificing functionality. It ships with a three-piece choke set, an adjustable cheek rest, removable open sights and mounting options via Picatinny and M-LOK rails. The package includes a single 5-round magazine and a ported barrel shroud.

Its compact layout and modular features make it suitable for range work, tactical training, and upland sporting use where a shorter overall length is desirable. The shotgun is configured for right-hand operation and accepts 3″ shells.

Product Specifications

• The manufacturer is listed as American Tactical / ATI.
• The model is identified as the Bulldog (BULL-DOG).
• The action type is Semi-Auto.
• The caliber/gauge is 20 Gauge.
• The listed capacity is 5 + 1.
• The barrel measures 18.5 inches.
• The maximum chamber size is 3″.
• The overall length is 39 inches.
• The listed weight is 10.1.
• The stock material is synthetic.
• The stock is described as a fixed bullpup with an adjustable cheek rest.
• The shotgun includes a three-piece choke set (three chokes included).
• Sights are listed as adjustable open and are removable.
• Additional features include Picatinny/M-LOK rails and an AR-style charging handle.
• The UPC is 819644029793.

Compact and modular, the Bulldog combines a shortened overall length with familiar accessory mounting options and a three-choke system for flexible shot patterns. Its configuration is intended for shooters who want a compact 20 gauge platform for range use, tactical-style training, or upland sporting applications where maneuverability and accessory options are priorities.