Classic Army 470rd Metal Hi-Cap Magazine for SR-25 Series Airsoft AEG Rifles

"Does anyone know if this mag fits an M16? I know my friend uses it in his CA25 but I don't know if it has the same magwell as an M16.

"It doesnt fit a m16, cause its the same size as the real mag, and a real sr25 uses higher caliber rounds, so it has a bigger magazine.
That does dissapoint me, cause the p-mags and stuff look so nice, but they dont fit my sr25 :(:(