The new Remington improvements consist of adding an "A" between the "RR"" serial number pre-fix letters.
4,5,6,7,A,B,C,D,E,F,G,S,TT,RR pre-fix serial numbers are now "RAR" pre-fix serial numbered w/no suffix letter as per RR's.
Same "short cam" bolt handle that was introduced in 2006 along w/ the XMark/Pro MIM'd trigger groups.
Same snap in .378",473" breech face & riveted .532" breech face extractors.
