And btw instead of grenade launcher why don't you add like normal grenades with count of 2 or 3 like in Garry's Mod Prophunt. It'll will be much better.
I had them before ( in a pre-release build, but they were broken. They would usually go through walls or get stuck in the character themselves. Also sometimes it would glitch out and give props grenades as well. Below is the grenade test GIF from the pre-release build.
