I looked it up and it was made in 2006, and has a JM stamp. What does the JM stamp signify?
Proof mark for Marlin. Now it's REP. There were some JM marked barrels used after the Remington takeover-during the transition phase.
That's not correct.
JM was a proof mark that was only used after a gun was test fired at the Connecticut factory.
The proof marks aren't stamped until the gun is finished and has been test fired.
Any gun with a JM stamp is a 100% Marlin made Marlin in North Haven Connecticut.
Some digging over to Marlin Owners forum will verify this info.
