grenade launcher 3D model

Grenade launcher with pre-made grenade canisters and an attachment rail

Grenade ammo Red dot sight Removable cylinder Stock Fore grip 6-round capacity

I made this in Solidworks and I'm looking for feedback on how to make these models easier to use and how I can improve them to better suit what you need them to do. Please contact me or leave a comment if you have requests and advice