Brownells BRN-10 Lower Receiver - $314.99 + S/H

I was going to say I do not know which parts from a modern AR in 308 would fit an original Dutch-built Armalite AR10. Instead I will remind you that there is no standard in modern ARs in 308 as there are in AR-15 clones; check ar308.com for their lists of what fits what, and then spend time finding out what works. The BRN-10 is the Brownells tribute band, an attempt to make something as close to the AR-10 as economically possible. In fact, note they made the decision to have it use modern DPMS-style magazines, FCG, buffer tube, and bolt group instead of the original Armalite ones.