Is converting an M&P 40 Shield to 9mm safe?
I'm on the waiting list for an M&P Shield in 9mm, but after hearing more and more people converting their M&P 40's to 9mm I'm wondering if I should get the .40 and just get a 9mm factory barrel and mag's to go with the .40 instead?
Does this effect the accuracy, and or reliability? The reason I'm getting the Shield 9mm is for my wife to CC it, but we just figured if we could get multiple calibers out of it then why not. But the primary reason the pistol will serve is to be a 9mm carry weapon for the wife.
Thanks for your input