Originally Posted By: Olas
It depends who/what you are defending,maunder what,circumstance.
A SPAS 15 can be very effective in CQ, a AR or AK give you more range if the terrain dictactes is, but when subtlety asks for,your discretion, a walther ppk or glock 20 are quite easy to miss.
Its about picking the tool for the job
The Glock 20 is a full size service pistol holding 15 + 1 of 10mm.
It's quite HARD to miss. It's the biggest Glock frame.
But in your country, you can't own any of the firearms that you've listed, can you?