The pistol on your novel's cover is a CZ-75. It's not an unknown gun by any means, but it's relatively uncommon in real life; sushi to the hamburger that is a Glock or a Beretta. Despite this, it's a common choice for infographics where just "a gun" is needed, and I can't for the life of me figure out why.
I'm curious - do you know why that particular pistol was chosen for your cover?
Interesting, never thought of figuring out the model!
The cover was made by a freelancer I found on 99designs.com (I'm really happy about that experience, BTW - and I have nothing to do with them, I just liked the service). The pistol looks good and the image was royalty-free, which is probably why the freelancer chose it.
But in retrospect you're right, I should have checked. The only pistol specifically mentioned in the novel is a "H&K" (not even the model), but there are many other anonymous ones. This CZ-75 could be one of these :)
I'm curious - do you know why that particular pistol was chosen for your cover?