My "REAL" 1.59 mil SA(Mass) M14NM has a DAS cartouched accraglas bedded stock that is DEEPER if you look at the ferrule straight on and the pistol grip area is"fatter" too.The only other stock I have is a fibreglass one(issue).I have heard Lloyd"Fred"Johnson when he was the Match Armourer at the AMTU at Ft Lewis WA back in the early 1980's referring to "heavy match stocks.I don't know if this IS one or not.I WILL say that it shoots like a hot damn though.Happy Easter all and a Good Passover/Pesach too, to all my Jewish friends.JR