H&R Topper Model 158 .410 Bore Single-Shot, 28 in Barrel, 3 in Chamber, Full Choke, 1970s USA
This Harrington & Richardson Topper Model 158 is a classic .410 bore single-shot from the 1970s, built in the USA. It features a 28-inch blued barrel with a fixed full choke and a 3-inch chamber, paired with a color casehardened steel receiver. The uncheckered hardwood pistol-grip stock retains its ventilated orange H&R buttpad with a white-line spacer. Notable factory rollmarks and a circled P proof are present, with an AH-prefix serial format consistent with H&R’s letter-prefix system.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Good — Clean, well-maintained, minor wear marks.
Specific Condition Notes: This firearm is in solid functional shape. There are scratches and blemishes present on the metal and wood. The bore is clean and shiny. Light pitting is present. There are engravings on the bottom side of the receiver.
What’s Included
- Harrington & Richardson Topper Model 158 .410 bore single-shot shotgun
The Topper Model 158 is a straightforward, break-action design with an external hammer and a right-side opening side-lever. It uses a one-piece extractor for reliable shell withdrawal and holds a single round, emphasizing simplicity and dependability.
The 28-inch round steel barrel is blued, configured with a fixed full choke and a 3-inch chamber, and wears a brass front bead with no rib. This setup provides a clean sighting reference and a pattern constriction appropriate to the configuration.
The receiver and frame are steel with a color casehardened finish, complementing the blued barrel. Factory markings include the rollmark "TOPPER MODEL 158 / HARRINGTON & RICHARDSON, INC. / WORC. MASS. USA" and a circled P proof/inspection mark on the barrel.
Engraving is present on the bottom side of the receiver. Hand-scribed matching assembly numbers appear on the receiver and forearm wood.
The hardwood furniture consists of an uncheckered pistol-grip stock and a slim forearm with a single through-screw. A ventilated orange H&R-logo buttpad with a white-line spacer is fitted, and the length of pull measures 13.5 inches.
This example aligns with H&R’s discontinued Topper lineage, with an AH-prefix serial format from the company’s letter-prefix system that is consistent with 1970s production. Made in the USA, it represents the practical utility the Topper series is known for.