Even better argument, maybe Glock are not as reliable as 1911 or P226 in real-life.
That would explain why no Tier 1 NATO special forces use Glocks...
In the "Black Rifles" forum I had a thread going about the English translation of this magazine from Germany (see below), which goes through the "Small Arms of German Special Ops Units, and Austria, Switzerland and Luxembourg." Great mag. Tons of pictures of actual special ops guys (faces blurred) and their gear.
I guess it depends on what the definition of "Tier 1 NATO special forces" is, but in the GLOCK section of the mag, it pretty clearly shows that the following Special ops units use GLOCK pistols:
- GSG9 (counter-terrorism and special operations unit of the German Federal Police);
- various SEK (Spezialeinsatzkommandos, basically "SWAT teams") of German state police forces;
- Jagdkommando (special forces) of the Austrian Army;
- EKO Cobra (Einsatzkommando) of the Austrian Federal Ministry for the Interior;
Whether these units are "NATO" or not, I think one would have to conceed that this list includes some of the best known and most highly respected special ops units in the world - and they all primarily use the GLOCK 17 (although its seems that they can, and sometimes do, use whatever they want -particularly in the case of GSG9 and EKO Cobra). The standard GSG9 pistol (famously) was the HK P7 (my favorite gun

) but it seems they have transitioned almost entirely over to the GLOCK 17 now.
- of the countries featured in that mag, only Germany and Luxembourg are in NATO. Switzerland and Austria are so-called "neutral" countries (in Cold War terminology).
- the German (military) special forces (KSK - Kommando Spezialkräfte; Fernspählehrkompanie 200; Kampfschwimmer, etc.) are using either the HK P8 (9mm USP variant) or HK P12 (.45ACP USP Tactical variant).
- as best I can tell, the tier 1 unit from Luxembourg is called USP ("Unité Spéciale de la Police"). They issue the SIG P226.
I wanted to say something about the idea that "every cop in Germany carries a CZ". To be honest I am having some difficulty confirming that ANY police agency in the Federal Republic of Germany currently or formerly issued a CZ 75-type pistol. The information I have confirms that the following pistols are/were issued by German police:
Historically: (and maybe still in some places)
Walther P1 (P38-type)
Walther P5
P6 (SIG-Sauer P225)
P7 (HK PSP) (Feldjäger (military police). Was previously used by the Federal Police (Bundespolizei), including GSG9, and many state police forces (Landespolizei). Many of the surplus ones we got here in Canada were from North Rhine-Westphalia or Lower Saxony state police forces);
HK4
HK P9S (GSG9 and State police of Saarland)
Currently:
HK P30 (Federal Police, Federal Customs Administration, Hesse State Police, etc.)
Walther P99 (North Rhine-Westphalia State Police, Rhineland-Palatinate State Police, Hamburg, Bremen, Schleswig-Holstein, etc.)
P10 (USP Compact in 9mm) - some State Police forces (Landespolizei);
GLOCK 17 (special units only: GSG9, some SEKs)
SIG-Sauer P226/229 (some SEKs and the Federal Criminal Police Office)
CZ 75 and clones seem to be used by police and military in the following countries: Czech Republic, Georgia, Lithuania, Poland, Russia, Slovakia, Thailand, Turkey, and also some places in the U.S. I remember reading somewhere that back in the Cold War days numerous CIA-types were known to carry the CZ 75 before it was commonly available in the West.