Marlin Model 336 RC .30-30 Lever-Action Rifle (1961) – 20" Micro-Groove Barrel, JM Proof, No Stock
Made in 1961, this Marlin Model 336 RC offers the classic lever-action reliability of the 336 line paired with a 20-inch Micro-Groove barrel and the desirable JM oval proof mark. While the rifle shows clear evidence of hard use, it remains a fully blued, steel-framed example of Marlin’s mid-century craftsmanship and is chambered in the time-tested .30-30 Winchester cartridge.
Condition
Overall Condition: Fair condition, showing extensive signs of prior use and handling.
Bore Condition: Fair – generally clean, some residue or smudges, slight corrosion.
Bore Fouling: Mild Fouling – light buildup of fouling or dirt.
Bore Rifling: Fair Rifling – worn rifling, slight loss of definition.
Specific Condition Notes: The rifle displays moderate to heavy scratching, scuffing, pitting, and blemishing on the exterior metal. The original walnut stock was broken by a previous owner and is no longer present; only the original buttplate with its mounting screws remains.
WHAT’S INCLUDED
- Marlin Model 336 RC lever-action rifle (as described)
- Original Marlin buttplate with mounting screws
The 20-inch barrel uses Marlin’s Micro-Groove rifling, a pattern of numerous shallow grooves that was introduced to reduce fouling and improve velocity with jacketed bullets. Even with its age and wear, this rifling system can still offer respectable accuracy once the bore is properly cleaned.
Marked with the JM oval proof on the barrel, the rifle was manufactured in Marlin’s North Haven, Connecticut facility before the company shifted to later proof marks. Collectors often look for this stamp as confirmation of original Marlin production.
The action retains the traditional 6-round tubular magazine and smooth lever throw that have long defined the 336 series. All major mechanical parts are steel, and the rifle remains configured with standard ramp front and semi-buckhorn rear iron sights.
Although the original walnut stock is missing, the steel receiver, barrel, and internal components present a solid foundation for restoration or custom stock fitting. For shooters seeking a period-correct 336 RC or builders looking for a proven .30-30 action, this rifle offers a straightforward project platform.




