Oh yeah and I just thought of a couple guns from No One Lives Forever (one of my fav games of all time) that I love. These are all from NoLF:
1. The Balacov Corrector (Thompson Contender in real life) - Sorry its such a small picture, best I could find. 2nd pic is it in real life
2. Gordon 9mm SMG (Sterling Mk. IV in real life) - I couldn't find a pic of the game version but here's the real life gun its based off of
3. SVD Dragunov - Best sniper in the game, makes such a loud awesome noise and is super powerful. Here's a game pic and then the gun IRL
No One Lives Forever is an amazing game! Won lots of awards for the PC version when it came out. PS2 port was way worse but I still loved it.