NPM carbine help ..

[imntxs554]

Thank You Bob, That answers part of my question...ALL receivers had a Proof (Punch) mark. Then now I can look at just the Barrels to see if ALL had them also.

In 2010 there seems to be the same discussion if NPM did use 2 type of Proof Marks. There's some same type of questions and answers and pictures of 3 different Barrels on NPM Carbines placed there other Punch Mark.

https://www.milsurps.com/showthread....267#post124267


Frank