Winchester Model 840 12 Gauge Single-Shot, 30 in Barrel, 3 in Chamber, Fixed Full Choke, Canadian-Made
This Winchester Model 840 is a Canadian-made, single-shot 12 gauge from the late 1960s–1970s, continuing the lineage of the Cooey Model 84. It features a 30 in plain steel barrel with a fixed Full choke, a 3 in chamber, and classic break-action operation with an external hammer. The barrel is marked "Proof Steel" and "Made in Canada," and the gun uses a top-mounted sliding latch release with a serrated hammer spur for positive control.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Specific Condition Notes: There are handling marks and areas of surface rust from prior use. The receiver sides show the blue worn/removed and are now in-the-white (matte silver-grey), while the barrel and top strap retain blue. Please refer to the photos for a close look at the metal and wood surfaces.
What’s Included
- Winchester Model 840 single-shot 12 gauge shotgun
Built in Canada as a continuation of the Cooey Model 84, the Model 840 retains the straightforward, durable single-shot design favored for field and utility use. Its origins and markings appeal to those who value the Winchester–Cooey connection and Canadian manufacture.
The 30 in plain steel barrel is fitted with a fixed Full choke for tighter patterns. It is chambered for 3 in shells and also accepts 2 3/4 in, offering flexibility with common 12 gauge loads. A brass bead front sight provides a simple, reliable sight picture.
The break-action, single-shot layout uses a top-mounted sliding latch release for easy opening and loading. An external hammer with a serrated spur offers confident cocking and clear visual status. Capacity is 1 round.
Construction is all-steel with the barrel and top strap retaining a blued finish, while the receiver sides are in-the-white (blue worn/removed), paired with a two-piece hardwood stock. The length of pull measures 14.0 in, delivering a traditional fit and feel.
Barrel markings include "Proof Steel" and "Made in Canada," underscoring its production and material quality. The configuration aligns with its era: plain barrel with no rib, fixed Full choke, and bead sight—practical features that define this Model 840.