God rid of the camo layer in the diffuse. Two different directions below. I still wanna go with the solid black look though Someone mentioned breaking up the materials
Your gun looks decent model wise, though we don't know the exact tri count or see the wireframe of it to see how much could be optimized. But your biggest issue by far is the poor quality of your textures for the gun. It looks unrealisticly noisy and bumpy. While the guns texture does have noise it's very subtle and the…