My two SAI's both came with USGI trigger groups. One is a TRW and one is a Winny OM-N, both with HRA guts. Everything else on them originally was SAI and the manufacture date is 2007 & 2008. Is SAI still using USGI trigger groups in the new production rifles; and if not, how long ago did they quit using them? Was it the luck of the draw, or did all of the SAI rifles manufactured in 2008 and before come with USGI trigger groups. I know the older models had mostly USGI components until the available supplies of USGI parts dried up. If SAI is still using the USGI TG's, where are they finding them? I've been eye balling the TRW for one of my LRB M25s and feel kind of guilty, like a organ harvesting thief or something. I promise not to leave my rifle in a bath tub full of ice water though.