no it would not. AR10 is the brand name for the armalite .308.
i hate to be the barer of bad news but the .308 (Sr-25, AR-10, Remington r-25 which is a dpms .308) are all AR-10 and 20 round mags are the max and have not one part incommon with the AR-15. our sniper platoon uses the mk11 sr-25 and its a great weapon and i have the dpms. great weapon but its gas gun and has dependability drawbacks
i would keep a socom2 or any m-14 variants