If it’s the same as the p415 which I believe it is, it has ambi safety and ambi bolt release, just no ambi mag release. Could always add a norgon if you needed that. Biggest difference between Gen 3 and Gen 4 is the “E2” chamber which is supposed to help with extraction but I have never had a problem. Also Gen 4 has a bolt hold open control inside the trigger guard if I’m not mistaken.