I am kind of new to the 308 AR world so feel free to correct me where I have confused things. So I want an SR-25, but I (like most people) don't have $4500 dollars laying around, so I am "settling" on a clone, or as close as I can get. I have a few questions. From what I can tell there are two basic groups of 308/AR-10s, the DPMS and the Armalite. Will the KAC rail fit either the AR-10 from Armalite or the LR208 from DPMS? Will c-product mags and pmags work in both of them or just in the DPMS? From what I can tell I can use the DPMS and have the good mags but not the rail, although I could use the Troy MRF-308 rail which is very similar instead. Or I can use the Armalite and get the actual rail but be stuck with possible magazine problems. Thanks for any advice or answers.