Apologies if this is a dupe. I tried searching a myriad of things relating to muzzle brakes or barrels and didn't find anything like this.
My suggestion would be to add another slot onto weapons for more customization. This slot would be the actual rifle barrel itself. The reason I say this is because of two things.
- The main Blufor rifle is based upon the ACR, which has a quick detach barrel. This quick detach concept could also apply to any other weapons added to the game which would theoretically have this feature.
- Heavy and light machine guns can overheat after several hundred rounds, thus requiring the ability to replace the barrel.
As mentioned in 1, you obviously can't quickly replace the barrel on all rifles, so it would only apply to other rifles you deemed to have the quick detach feature, but I think this would be incredibly useful for two reasons. First, you don't need to have two guns in a crate, you just have 1, with the alternate barrel types, and two, you can easily turn a CQB version of the ACR, or any similar gun, into a marksman rifle with the quick change of a scope and the barrel.