Marlin Model 39A Mountie .22 LR Lever-Action Carbine, 20 Inch, 1957 P-Prefix, Takedown, Micro-Groove, 15-Round
Produced in 1957 with a P-prefix serial, this Marlin Model 39A Mountie is a classic straight-grip carbine with a 20 inch barrel and Micro-Groove rifling. It features a takedown configuration with the large slotted screw, a pre–cross-bolt safety receiver, and a New Haven, Connecticut barrel rollmark. Chambered for .22 Short, .22 Long, and .22 Long Rifle, it holds 15 rounds of .22 LR and comes with the receiver top drilled and tapped with a base installed.
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: This firearm is in solid functional shape. The exterior shows scratches and blemishes. The bore has a bright, shiny appearance.
What’s Included
- Marlin Model 39A Mountie .22 LR lever-action rifle (1957)
- Receiver-top scope base installed (receiver drilled and tapped)
This Mountie configuration delivers the compact carbine profile with a straight-grip walnut stock and slim walnut forearm. The 20 inch steel barrel is marked Micro-Groove, and the rifle carries a New Haven, Connecticut barrel rollmark that aligns with its 1957 production.
It is chambered for .22 Short, .22 Long, and .22 Long Rifle, with a 15-round capacity in .22 LR. The steel barrel and receiver wear a blued finish, and the receiver is the pre–cross-bolt safety type associated with earlier production.
Sighting is handled by a hooded ramp front sight and an adjustable rear leaf with elevator. The receiver top is drilled and tapped with a base installed, and there are additional side D&T holes present.
The rifle is a takedown configuration using the large slotted screw. Furniture details include a walnut straight-grip stock with a white-line spacer, hard rubber buttplate, and a rear sling swivel, plus a walnut forearm with a nose cap. Length of pull measures 13.5 inches.




