About this 3D model

This is my model of the blaster that Han Solo gives Rey in Star Wars: The Force Awakens, the LPA NN-14. As soon as I saw this blaster I knew I needed it so I immediately learned blender and made it. This is my first model I've made from scratch so constructive criticism is welcome! The screws are missing because I have real Torx Security panhead screws I wanted to use. If you want to print them I'm sure you can just superglue them to the holes to cover them up. I even left a compartment and a hole in the barrel for if you want to put an LED in it! Thanks to Bowie for experimenting. You need: "for the body we used 24 pcs of M3 - .50 x 6 for the grip we used 4 pcs of M4 - .70 x 10" plus 4 random hard drive screws because they are tiny or you can print the heads and glue them on