I have a neutered FH on my Bush rifle, makes removing the gas cylinder plug easier.... otherwise it would have a bayo lug on it too. All of the others have the evil feature.
The problem is all non-usgi parts M1a's are neutered.
I had one die (bent the cheap cast op rod) on the line at an Appleseed in Wabash about 4 years ago. Had a newer scout rifle simply roll over n die (bolt split open n op rod bent) at a 5 magazine course of fire during a class.
my scope mount is the springfield mount , i have taken it off several times to see if it holds zero after remounting it,it proformed perfectly.altough my m1a is not all springfield i do have some hra parts.