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ATI Bulldog BULL-DOG 20 Gauge Bullpup Semi-Auto | 18.5″

MSRP: $439.95

Your Price: $342.00

The American Tactical / ATI Bulldog BULL-DOG is a 20 gauge semi-automatic bullpup shotgun with an 18.5″ steel barrel, fixed green synthetic bullpup stock, Picatinny/M-LOK rails, adjustable open sights and a 5+1 capacity.

The American Tactical / ATI Bulldog BULL-DOG is a compact bullpup semi-automatic shotgun that pairs a short 18.5″ barrel with a fixed bullpup stock for reduced overall length without sacrificing chamber capacity. Its modular layout includes Picatinny and M-LOK accessory mounting, an AR-style charging handle and an adjustable cheek rest for improved ergonomics. The Bulldog ships with three choke tubes and a single 5-round magazine, supporting a variety of sporting and range applications.

Product Specifications

  • The action is Semi-Auto.
  • The gauge is 20 Gauge.
  • The barrel measures 18.5 inches.
  • The overall length is 39 inches.
  • The capacity is 5 + 1 rounds.
  • The chamber accepts up to 3 inch shells.
  • The stock is a fixed bullpup synthetic in green with an adjustable cheek rest.
  • The receiver material is aluminum.
  • The barrel material is steel with a matte black finish.
  • The shotgun includes three choke tubes.
  • The package includes one 5-round magazine.
  • The sights are adjustable open (removable).
  • The shotgun features Picatinny and M-LOK rails and an AR-style charging handle.
  • The UPC is 819644029786.

Designed for shooters who value compact handling and modular features, the Bulldog is well suited to close-range patterning and dedicated range sessions, as well as upland or field use where a shorter overall length is advantageous. Its bullpup layout and accessory-ready chassis make it a practical choice when space is limited but performance and adaptability are still required.

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SKU: TSW|161765 Category: Brand:

Product Information

SKU TSW|161765
UPC 819644029786
Manufacturer American Tactical / ATI
Manufacturer Part Number ATIG20BDG
Action Semi-Auto
ATF Type Shotgun
Barrel Finish Black
Barrel Length 18.50"
Caliber/Gauge 20 Gauge
Capacity 5 + 1
Chokes Included 3
Length 32.6500
Number of Magazines 1 5 rd.
Package Height 3.5
Package Width 11.5
Product Type Shotgun
Safety Manual
Shipping Weight 10.35
Sights Adjustable Open
Sights Type Adjustable Sights
State Restriction (CA) NO DIRECT SHIP TO CALIFORNIA
State Restriction (Guam) NO SALE TO GUAM
State Restriction (IL) NO SALE TO ILLINOIS PICA
State Restriction (PR) NO SALE TO PUERTO RICO
State Restriction (VI) NO SALE TO VIRGIN ISLANDS
UPC819644029786
ManufacturerAmerican Tactical / ATI
Manufacturer Part NumberATIG20BDG
ActionSemi-Auto
ATF TypeShotgun
Barrel FinishBlack
Barrel Length18.50"
Caliber/Gauge20 Gauge
Capacity5 + 1
Chokes Included3
Length32.6500
Number of Magazines1 5 rd.
Package Height3.5
Package Width11.5
Product TypeShotgun
SafetyManual
Shipping Weight10.35
SightsAdjustable Open
Sights TypeAdjustable Sights
State Restriction (CA)NO DIRECT SHIP TO CALIFORNIA
State Restriction (Guam)NO SALE TO GUAM
State Restriction (IL)NO SALE TO ILLINOIS PICA
State Restriction (PR)NO SALE TO PUERTO RICO
State Restriction (VI)NO SALE TO VIRGIN ISLANDS
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