it looks like it could be for a M37 but I have a swedish bolt (single feed) with the same A mark, but they did make a dual feed gun ( I think) . I am someday building a couple of M37's, so I will need this, I just found this today sorting threw my 1917 stuff.Appears to be m37 if you plan to get rid of it please let me know
Dang, that's a good point on the Swedish stuff. I have one of those RH extractors. Excellent call, Dave. Knew we kept you around for a good reason!The Sweeds used a dedicated RH and LH extractor Mirror images of each other.
It looks like an ANM2 A USGI one would be marked. My guess is Vickers Armstrong 303