Collisions on gun affect players movement

I have a box to take the place for a gun attached to a First Person Controller Prefab’s main camera. Everything is fine until I start to move. It looks like there is a lot of resistance keeping it from moving in specific directions.

It really shows when you look down, and/or aim down the sight.

Hi and welcome to Unity answers.

Make sure that the collider in the weapon is set to a different layer than the character controller’s. Otherwise, the two physical objects will push each other away when they intersect!