In this story I have a British teenager spy, which gun should she use? has to be European and not to heavy?

The PPK is the favorite of fictional spys.

http://www.smith-wesson.com/webapp/wcs/stores/serv...

http://en.wikipedia.org/wiki/Walther_PP

A real spy should use something untraceable, like a surplus Russian gun

http://www.makarov.com/makpics.html

http://en.wikipedia.org/wiki/Makarov_PM

Glock is actually an Austrian handgun. An American spy recently used one to defend himself from attackers, I believe in Pakistan. I believe he had a Glock model 26

http://us.glock.com/products/model/g26gen4

http://en.wikipedia.org/wiki/Glock

Glocks are used worldwide. The Iraqi police just bought something like 40,000 Glock 19s. I have a Glock 30 on the desk in front of me.

Beretta makes a small .380

http://www.beretta.com/Defence-Pistols-Carbines/De...

In Europe, the .380 seems to be more popular than the 9mm. In many countries, "military" rounds are banned.

Personally, I would buck the trend and give her an awesome .38 Super.

http://www.stiguns.com/the-sti-trubor/

Ok, so it's a little big to carry all the time, and maybe not what you need. But if you're planning a big shoot-out she might have one stashed somewhere.

And if you need heavy firepower

http://www.gunbroker.com/Auction/ViewItem.aspx?Ite...

Beretta 92A1 is a very nice Italian pistol with a magazine capacity of about 17 rounds. Very popular worldwide

The Five-SeveN pistol is a Belgian gun with a mag capacity of about 20 rounds. As far as I know this gun is sold only for law enforcement

Browning Hi-Power is another very nice Belgian pistol. I think it is more easily accessible than the Five-SeveN. I think it takes about 13 rounds.

The Glock is a hugely popular Austrian gun that makes up a large percentage of US police handguns.

Hope this helps :)