John

Gen 3 jack of all calibers

My gen 3 Glock 21 has a life of 460 rolling, 10 mL and of course 45 ACP and all loads that go with 45 ACP 45 super 45 plus p plus and 45 smc change the recoil spring at a comp in the case of 460 rolling and the way you go that's why I think the Gen 3 Glock 21 works the best