If you look at the picture second from the bottom you see the tang.
http://www.knifetests.com/FallknivenA1photos.html
The two millimeters with a different colour at the left end is the part sticking out.
The only Fallkniven knives that does not have a protruding tang is the WM1 and the EARLIEST models F1 (the ones with M-number stamped on them).
The F1, S1, A1, A2, F2 has the same construction just different sizes.
That is why I really like the F1 and the other ones, they can take punishment and perform.
The F1 was originally developed for the Swedish Airforce as a Survival knife by people who more or less lives in the wild themselves. They really know what they are doing. Just for that reason it is so popular with bushcraft people. It is a survive in the wild knife, not a survive in a bunch of Al Qaida knife. If a regular Mora knife is a Volvo 240, a Fällkniven is an Strv 103, the "S" tank.
One of the reasons that the F1 has VG10 is that most of the time in Sweden there is snow, and snow is water and so on. One other reason is that the edge holds much better and as a bonus, or planned, is that the back of the knife is great for scraping a firesteel.
I know there is different views on how a knife should look, what is a big knife and what is a small knife. The F1 might look small compared to Kabars and Becker knives but one thing is that you should carry it everywhere.