Mossberg Model 42-A .22 LR Bolt-Action Single-Shot Rifle, 18 Inch Barrel, Blued, 1937–1938 Production, Receiver Aperture Sight
This Mossberg Model 42-A stands out for its short 1937–1938 production window within the Model 42 series and its single-shot .22 LR configuration. It features an 18 inch barrel, blued steel receiver, and a receiver-mounted micrometer aperture rear sight with click-adjustable knobs. The hardwood stock includes side sling loops and a black composition buttplate, underscoring a classic pre-war Mossberg build.
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 Rifling - Intact, well-defined lands and grooves.
Specific Condition Notes: There are some scuffs and wear consistent with age. The metal surfaces are in great shape. This Model 42-A is a single-shot design built without a magazine well, so no magazine is included or required.
What’s Included
- Mossberg Model 42-A .22 LR bolt-action single-shot rifle
The Model 42-A was produced circa 1937–1938, a short run that adds interest for Mossberg enthusiasts. The barrel carries the rollmark: O.F. MOSSBERG & SONS, INC. NEW HAVEN, CONN., U.S.A. MODEL 42-A 22 S-LR.
It is a single-shot bolt-action with a loading port and no magazine well, keeping operation simple and consistent with the design. Capacity is 1 round, and the barrel measures 18 inches.
Sighting is a highlight: a receiver-mounted micrometer aperture rear sight with click-adjustable knobs pairs with a ramped front blade. This setup offers clear sight pictures and precise, repeatable adjustments.
The rifle is finished in blued steel with a hardwood stock. Stock features include a straight comb, pistol grip, no checkering, side sling loops, and a black composition buttplate. A takedown belly plate with a large slotted screw near the trigger guard supports straightforward field disassembly. Length of pull is 13.0 inches.