I'm kind of a gun fanatic and wanted to compile a list all the firearms of 007 as their real world counterparts. I believe the developers have to make up the names for the guns for legal reasons but I have compiled a list of what I believe matches the real world guns and have put together a complete list with photos and links to information on almost all of them.
If you're interested you can go here and learn about them.
You can also find lots of videos of people demonstrating the firearms if you search their real name on Youtube. Here's the Beretta M93R aka the "Kunara V". The USAS-12 aka the "Masterton M-557"
;P if you find any mistakes let me know...