I have a very early HK M1, so I wanted to pick up a 14" entry barrel, however it seems that the barrel I'm looking at has a longer barrel nut lug, I was comparing both barrels 14" & 18.5" and the 14" has a longer lug, and the M1 forearm doesn't fit? So am I looking at a M2 14" barrel? and would a M2 forearm correct the problem? Thanks
Maybe a pic will help?
This is the M1 Super 90 barrel lug
This is the what I think is the M2 barrel? or it could be a later M1 barrel?