High Standard Model Ten Series B Police Bullpup 12 Gauge Semi-Auto Shotgun, 18 in Barrel, 4+1, 2 3/4 in Chamber (1970–1977)
The High Standard Model Ten Series B is a compact, U.S.-made bullpup 12 gauge built from 1970–1977 and marked "Police Shotgun" on the receiver. Its gas-operated, semi-automatic system, 18 inch barrel, and approximately 26 inch overall length deliver a distinctive configuration with right-side ejection, integrated carry-handle rear sight, and a flip-up front blade. This example retains its carry-handle/flashlight mounting block and combines rugged synthetic construction with a 4+1 capacity for 2 3/4 inch shells.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Good - Clean, well-maintained, minor wear marks.
Bore Fouling: Mild Fouling - Light buildup of fouling or dirt.
Specific Condition Notes: There is visible surface rust in several areas, along with scattered scratches and handling blemishes.
What’s Included
- High Standard Model Ten Series B 12 gauge semi-automatic shotgun
- Carry-handle/flashlight mounting block with integral rear sight and knurled clamp knob (installed)
This Series B variant features the distinctive bullpup synthetic clamshell housing that shortens overall length to approximately 26 inches while retaining an 18 inch steel barrel. It is chambered for 12 gauge 2 3/4 inch shells, with the chamber marking specifying "MAG OR HIGH BRASS ONLY." Capacity is 4+1.
The iron sight system pairs a flip-up front blade with protective ears and a rear notch integral to the carry-handle/flashlight mounting block. The mounting block and knurled clamp knob are present, providing the factory-correct top assembly associated with the Series B configuration.
Controls and handling are purpose-built: a left-side non-reciprocating charging handle, a right-side reciprocating charging handle, and a top cocking handle assembly. The right-side ejection port carries the molded warning "CAUTION – DO NOT SHOOT FROM LEFT SHOULDER." Ergonomics include a pistol grip with finger grooves, a rotatable buttplate, synthetic fore-end panels, and fixed sling loops front and rear.
Receiver markings read "MODEL TEN | SERIES B | POLICE SHOTGUN | THE HIGH STANDARD MFG. CORP. – HAMDEN, CONN. U.S.A." Production dates to 1970–1977, aligning with the Model Ten’s law-enforcement-focused era. Construction includes a steel barrel and synthetic frame/stock, with a listed length of pull at 14.5 inches.

