Seems like somebody elsewhere did a little research(and some conjecture) and you might be a little off in your assertion.
Well over 5M Glocks have been produced, most of them still in service. Check out the production numbers for 1911s.
Our military bought about 3 Million of them up to 1945. Argentina, Brazil, Britain, Mexico, Norway, and Russia also had factories making 1911s around this time.
Up to that point my googling shows numbers like this: colt had sold about 250k commercial ones. That's up to 1945 alone, and just colt on the commercial side.
In 2009 alone, Kimber made ~79,000 pistols. http://www.atf.gov/statistics/download/ ... report.pdf
Looks like colt made 23k, springfield 13k. And that's just .45 1911s from what I can see.
Let's totally ignore the fact that there's what, 24+ manufacturers of 1911s right now. Let's also snip those above numbers from those big 3 firms and go on this: there's 100,000 built a year.
Now lets ignore all commercial 1911 pistols built from 1945 to 1992 too. Lets go on say, 1992 to 2012.
20 x 100,000 is what, 2 million?
Using those numbers 1911s built are at 5 million also. Keep in mind RIA's also produced/sold quite a lot of 1911s at its low price point. Inexact, yes, but it's hard to get exact numbers, but it isn't too much of a stretch, and 100k total 1911s produced/imported between all the firms making them these days is very likely on the low side!
Even then, glock could (but I sincerely doubt this is the case) narrowly edge out the 1911 in numbers. This idea that glocks have far and away more numbers produced as of right now than the 1911 is silly. It's close at the very least.
"Well not every 1911 is still in service", derp, that's a red herring. Tons of guns end up in safes, tons of guns are carried and not shot, etc etc. Many LEOs themselves on these boards mention how little some officers shoot their department issue service pistols, that they end up sitting in holsters collecting dust and are treated like just another piece of gear. Many guns end up like this. Many of these guns are glocks.
It's a red herring to bring up "not all of them are run hard derp derp."
(Does this make the glock a bad platform? Nope!)
That said thanks for bringing this up, I was happy to have done at least a little bit of googling and have gotten a ballpark figure idea