It looks very good! What I recommend that you change is the material for the middle gray area of the gun. Right now the gray area doesn’t fit that well with the wooden texture, but for the most part it looks great!
It’s pretty decent but theres a few things I’d like to point out.
The noise on the metal areas of the gun feels too uniform, and its thrown pretty much everywhere on the metal parts of the gun. Theres barely any material variation on the gun too and from the looks of it, its literally a single wood texture and a single noisy metal texture. I suggest putting stuff like dirt in, some edge wear and what not to break up the monotony of the texture across the gun.
The details you have on the main receiver of the gun like the safety lever and the bolt is quite lost and not easily seen due to the aforementioned texture that covers the entire metallic part of the gun.
The wood texture lacks depth and feels a bit flat and unnatural though I’d forgive you since this is Roblox after all.
Lastly some areas of the gun feels more detailed than others, for example the barrel and the front sight looks like its detailed nicely whereas the magazine & grip is lacking a bit of clarity (seeing as the polygons there are quite visible).
Overall its a good attempt at an AK-47! But I think the textures need a bit of work. After all theres a saying where “you can make a bad model look good with good textures” and make good models look even better with nice textures.