I am not sure why you are bringing up sights and lights. Regarding the reliability, it's not really a debatable point. It's been proven in testing and individual and organzational experience with millions of rounds of ammunition, which is why military and police departments don't issue 1911s as duty weapons.
@Scutter I don't know who told you that,but he sure as hell wasn't a friend. Friends don't lie to friends about survival tools,and that has to be one the biggest lies ever told.
1911A1's weren't issued to cops as duty weapons and were pulled from the military because the civilian asswipes in procurement who never heard a shot getting fired in anger or fear had appropriation money to spend,kickbacks to pocket,and wanted new toys. They used the excuse of "loaded guns with cocked hammers are dangerous and the cretins we hire to fight for us or protect us are too stupid to operate them safely!"
I guess you aren't aware that the shooters in Delta Force all carry one version or another of the 1911A1?
But hey,what they hell do professional soldiers who are literally authorized to carry any kind of handgun they want know about handguns,right?
As for me,I choose to rely on my experience of 6 years as a Special Forces weapons man in 3 different combat zones,and then being a professional school-trained gunsmith that worked in 2 gun shops before opening my own,so what the hell do I know about this subject,either?