I think they are similar but probably not a drop in. I just had a McMillan done for an m70 with aluminum pt&g and I had to send in the bottom metal for the inlet process. They made it sound like the different pt&g are inconsistent with each other. So answer is maybe yes, maybe no will just have to try it but my guess is some fitting or bedding will be required.

Last edited by ldg397; 05/31/21.