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Home » firearm-collecting

Detail of the JM stamp proof mark on a classic Marlin 336 rifle barrel
Posted infirearm-collecting

What Does JM Stamped Marlin 336 Mean? (A Hidden Goldmine)

If you are wondering exactly what does jm stamped marlin 336 mean, it indicates the lever-action rifle was built by the original Marlin Firearms company before its 2010 sale. ⚡…
Posted by Stampostage.info July 10, 2026
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