Flatbush Harry
Member
FWIW, I have been delighted with my Criterion barrel on my AMC-built CMP Special. One of the nice things about them is that they are short-chambered so the installer can finish ream the chambers. This allows for nice tight chamber for match grade ammo. I have gotten 2 MOA accuracy with mine...substantially better than acceptance standard for military rifles. When it's time to rebarrel on of my other M1s, I'll be using a Criterion barrel...and having the CMP Custom shop do the work.
Harry
Harry