W+F Bern K31 7.5x55mm Swiss Bolt-Action Carbine, 1958 Production, Simmons-Scoped
This late-production 1958 Waffenfabrik Bern Karabiner Modell 1931 combines Swiss military precision with useful modern upgrades. The straight-pull action, matching-number magazine, and clean bore preserve its collectible appeal, while an aftermarket clamp-on rail and Simmons variable-power scope add ready-to-use optics without altering the rifle permanently.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Good – Clean, well-maintained, minor wear marks.
Bore Rifling: Good – Intact, well-defined lands and grooves.
Specific Condition Notes: The beech stock has scattered scratches and small blemishes from field handling; metal surfaces retain even bluing with light edge wear.
What’s Included
- Simmons variable-power riflescope with rings (installed)
- Aluminum clamp-on optic rail for K31 receiver (installed)
- Swiss brown leather service-pattern sling (installed)
- Factory Swiss K31 6-round steel magazine, serial-matched to the rifle
The straight-pull action of the K31 allows rapid cycling compared with traditional turn-bolt rifles, a signature feature of Swiss service arms. Coupled with a factory 25.7-inch carbon-steel barrel, it delivers the accuracy for which the 7.5x55mm GP 11 cartridge is renowned.
This carbine is part of the final production run of roughly 3,000 K31s made in 1958, giving it added collector interest. Import markings from PW Arms, Redmond WA confirm its Swiss origin while documenting its lawful U.S. entry.
The beech stock, standard on post-war rifles, features the Swiss finger-groove fore-end and an inletted rear sling bar. Despite service wear, it retains its walnut-colored finish and solid structural integrity.
An aftermarket aluminum rail clamps to the receiver without drilling, preserving the rifle while providing a stable platform for the included Simmons scope. The optic, combined with original open sights, lets the owner choose between classic and modern sighting methods.
A matching-number magazine is uncommon among exported K31s and underscores this rifle’s originality. With its clean bore, intact rifling, and collectible configuration, the package offers both historical value and field-ready performance.