AK’s and 1911’s do well dirty, but the accuracy just plain sucks. I have owned a few examples of a quality AKs chambered for .556, and it is truly “best of both worlds”.
I went though a three month .45 course at Spring Lake, out in back of Ft. Bragg. The close quarter utility, punch, and reliability of the .45 more than made up for it’s fair, but good enough accuracy.
We had our own home built, baiscally un Army authorized target ranges with walk/run live fire popup targets. ( Done single, and later in small fire teams, with the instructors salting mags with duds for unexpected clearing exercises ) For some reason the military only seems to want to train soldiers for fixed position shooting against stationary targets. If the Officer Corps gave a crap, they would at least give the patrolling, first term noob a chance and get him though fire and maneuver, dynamic target courses instead of handing out delusional WWI era match target badges.( granted that is the foundation ).
Of course I am talking about a bureaucracy that took 30 years to get floating LED Aimpoint sights, and fifty year old MRAPs technology to the troops.
The AK-47 was designed to basically be a bullet hose that can be used as a carbine and in that role it excels the M-1911A1 that are still in the inventory are specimens that are made to military loose specs for reliability in hideous conditions they are also been in use since the end of World War II when the DoD stopped buying new M-1911A1s.