Do not buy remington anything with a serial number RR##### The receiver casting was Asian, garbage. Older stuff from 90s on back is good. But still.......why pay 300-500$ for a donor rifle that will cost 300-400$ to true up, side bolt release, open bottom for wyatt's/aics mags when a mac bros for 675$ or origin/nucleus/atlas/tenacity are all under a grand. They will all take prefits from a quality gunsmith. In my opinion its silly to go that route.