Shameless, I do believe that SF stands for "Slim Frame" ok.
Now looking at the GLOCK model book, I do see a Glock 20 and 20C. The 20 C stands for compact! The Slide Length of the regular 20 is 7.59 inches or 193mm. Listed in the book.
The also make a GLOCK 29 with a Slide Length of 6.77 inches or 172mm. in the 10mm caliber.
Ton..,
On the G20C the C signifies Compensated, not compact. While the slide is 7.59 inches, the barrel length is 4.6 inches. The 20C is not a little pistol being the same as the G20, which is the uncompensated version.
The only other 10mm caliber pistol they list is the G29 which has a slide length of 6.77 inches and a barrel length of 3.78 inches. It ain't a real little gun either, but smaller than the G20/20C.
O
