I took a look weapons of the game and the actual names of each weapon, and from that played San Andreas me I set in something. The creators of the game, when built it, they did something wrong. I took a look guns, and then click the icons. And I discovered non-weapons seen in icons. Las I say weapons are:
-9mm Pistol Silenced
The real weapons emerging in the icons are:
-9mm Pistol/Pistol Silenced = Glock 17
-Chromegun = Ithaca M37
-Micro SMG = Ingram MAC-10
-AK-47 = Avtomat Kalashnikova 47 without armrest.
-M4 = Colt Car 15
-Sniper Rifle = Heckler & Koch PSG-1 Combat Sniper
If you want to view images by Google Images.
Now that you know, If you are going to create weapons mods, do precisely that name.