The RSA is Gen 3. A stainless steel non-captured guide rod and a ISMI 22lb. recoil spring. The mag springs are about 3-4 yrs. old. Probably time to replace them with some Wolf extra power springs so I won't have any more FTFs on the .45 Supers. This is the first time this has happened with these mags, time to replace their springs. Wanna kill these ads? We can help!