High Standard Model 10 Series B Bullpup 12 Gauge Semi-Auto Shotgun, 18 in Barrel, Police-Marked, 4+1, 2 3/4 in Chamber (1970s)
This police-marked High Standard Model 10 Series B (HS10B) is a U.S.-made, gas-operated bullpup shotgun built around the C-1200 Supermatic autoloading action. It features a compact 18 in barrel with an overall length of approximately 26–27 in, dual charging handles, and a detachable carry handle with an integrated rear notch sight and Series B Kel-Lite mount. Right-side ejection with a factory 'Do not shoot from left shoulder' warning, a pivoting butt cup, and sling points round out a purpose-built 1970s law-enforcement design.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Overall Condition: Good - Clean, well-maintained, minor wear marks.
Specific Condition Notes: The firearm is in functional condition. There are minor scratches and blemishes on exterior surfaces. The front serrations show blemishing. The charging handle has worn the finish on the rear sight at its attachment point. Very small and infrequent spots of pitting are present.
What’s Included
- High Standard Model 10 Series B 12 Gauge semi-automatic shotgun
Developed primarily for law-enforcement use, the Model 10 Series B refines the original HS10 design with a detachable ribbed carry handle on a pedestal mount engineered to accept a removable Kel-Lite flashlight. This example is police-marked, underscoring its service-focused origins and configuration.
The bullpup layout places the action behind the trigger group, achieving an overall length of about 26–27 in with an 18 in barrel while maintaining a 4+1 capacity. It is marked for use with magnum or high-brass 2 3/4 in shells and uses a gas-operated system derived from High Standard’s proven C-1200 Supermatic action.
Controls and handling features include dual charging handles, right-side ejection with the factory 'Do not shoot from left shoulder' warning, and a pivoting 'butt cup' buttplate. Sling attachment points are provided front and rear to support carry and ready deployment.
The shotgun wears black polymer furniture with an integrated synthetic fore-end and checkered panels, plus a checkered pistol grip with finger grooves. Sighting is via a flip-up front sight paired with a carry-handle rear notch. The steel receiver and polymer stock components contribute to an unloaded weight of roughly 10 lb and a length of pull of 14.5 in.