Marlin Model 375 Lever-Action Rifle, .375 Win, 20 in Barrel, Blued, Walnut Stock, JM Proof, North Haven, 5+1
This Marlin Model 375 is a North Haven, U.S.-made lever-action chambered in .375 Winchester, notable for its 20-inch Micro-Groove barrel, blued steel construction, and JM proof on the barrel shank. It features a solid-top, side-eject receiver drilled and tapped for scope mounting with four plug screws installed, a 5+1 two-thirds length tubular magazine, and classic walnut furniture with practical field details.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent - Crisp Micro-Groove rifling.
Specific Condition Notes: Metal and wood show a few minor scratches and small blemishes from light handling. The bore is clean, bright, and presents a mirror-like finish.
What’s Included
- Marlin-branded brown leather rifle sling (embossed 'Marlin')
Chambered in .375 Win, the Model 375 delivers a stout medium-bore option in a handy 20-inch package. The steel receiver and blued finish pair with Marlin's solid-top, side-eject design, and the receiver is drilled and tapped with four plug screws installed for straightforward scope base mounting if desired.
The 20-inch barrel uses Marlin Micro-Groove rifling, and the bore is in excellent condition. Sights are practical and period-correct: a ramped front sight base (no hood) and a folding semi-buckhorn rear with a stepped elevator for on-the-fly adjustments.
Classic walnut furniture includes a pistol-grip stock with a white-line spacer and recoil pad, a walnut forend with a steel forend cap (no barrel band), and sling swivel studs. A gold-colored trigger adds a distinctive visual touch consistent with the model.
This rifle carries the desirable JM proof on the barrel shank and was manufactured in North Haven, Connecticut. The two-thirds length tubular magazine offers 5+1 capacity, and the length of pull is 13.5 inches, balancing control and quick handling.




