I just found out and want to post that most of the weapons texture is missing. The right side of every weapon texture are misssing the left side is fine which is your point of view. But some weapons are just fine AK47 , Mk48 and Mp5a5

I suggest to recreate the model and enhance the texture design of the gun maybe about 16x or 32x pixel? With Blockbench software, I'm not sure if you're familiar with that but it's the best software for making Minecraft Blocks, items and tool and you
can animate there too! To improve the reloading animation in my opinion.

I also doing a commission making models with Blockbench! I'm quite good at making models, texture and animations with Blockbench :3 I would like to be benefit for this mod, help with models & props making it more Minecrafty style. ^^/

For more details dm me in Discord Zensuyo#2053 if you're interested, and so I can show you off some of my work.
Thanks for reading this!