This is the milestone of your collection. Unlike 'weapon-makers' like me and slasher, yorty or .vX. You actually renders them and doesn't give the spriting feel to it. But thats okay! Because they can't look any better than this.
Pack features firing sounds of weapons, but not reloading sounds. Do you have by any chance got their custom reload sounds? (Not all sounds are fitting, like the awp has an echo sound after being shot, but thankfully less hearable in-game).
I personally like the Ak, because it's literally shiny in shadings and lighting. Finally someone who can spam weapons of very good quality, instead of GunShoot some months ago...
-edit-
One thing bothers me, the galil; it seems it does haven't any (or only a bit) lighting/reflection on the weapon what the other four guns do have. Also saw your "Metro Police" and "Combine Elite' from hl2 player sprites, nicely done. And Passer is right about the m4a1, but doesn't ruin the total picture.
Ak-47, nice but i think mine is better, so i don't replace it :p
Aug, nice, i'll replace
M4A1, of course replace!
Galil, my fenomen, i love it xD, replace
F2000, No replace, but nice
Sg550, No, i don't like colours ;p
Machete, No, but it's nice
Glaunch, Yep, replace
Pgun, No, i don't like it :l
M3, maybe i'll replace, it's cool :p
So... i rate this weapon pack on... 5/5