It's the outdated-ass "have the biggest bullet in the sidearm with the most knockdown electricity you could cope with" argument as opposed to the "bullet size will not issue just as much as where you can... I make use of the Mech Tec Devices carbine conversion for my Glock 20 https://glock18parts97417.sharebyblog.com/26517277/glock-18-upper-can-be-fun-for-anyone