I'd like to get a few for my Six, but I'm not sure as to proper type.I got the rifle used and she had a Model 760 type ( all steel).However, replacement mags are for the similar 7600 and have the plastic bottom.Both fit and function perfectly, but the 760 type drops free when the release is used while the 7600 type requires manual removal.Its nice as it makes them alittle harder to lose! Of the 2 I prefer the all steel( I just dont like plastic) but I'm curious which type she left Illion with. It would've been nice if Remington designed that plastic floorplate to be easily removed so one could properly, and easily, clean the magazine! Oh well...