WHAT DOES SAGE EBR FOR SALE MEAN?

(I know the dude at Crane who held the sole deal for SAGE chassis with the US military services, but I do think almost all of that procurement exercise was 2004 thru possibly 2014? Unsure about orders for replacement pieces)A Kydex hand guard and M68 CCO are added, nevertheless They're almost always changed which has a vertical foregrip and magnify