A double stack P220/227 is a great concept by SIG Sauer.
It will really compete with the popular Glock 21/21SF .45acp.
I'm curious to know why a large frame duty size .45acp didn't come out sooner from SIG.
I'd buy a DAK model with 3 dot night sights when it comes out.
I read former US Navy SEAL Chris Kyle's non fiction; American Sniper. Kyle stated his regular sidearm in OIF/SW Asia was a P220 .45acp.