Despite what movies show, suppressors do not make guns "silent." They are hearing-safety devices. However, they are regulated strictly. Drilling a hole in a oil filter or a solvent trap to attach to a firearm barrel is a federal felony unless you have an approved ATF Form 1 or Form 4.
In gaming, a "mod" (short for modification) refers to any change made to a game’s code or assets. "Gun mods" are among the most popular types of user-created content.
Muzzle rise kills speed. A compensator uses gas to push the barrel down.
Visible through the slide cuts, a fluted or "chameleon" PVD barrel is the ultimate flex. Titanium nitride (Gold), copper, and rainbow finishes are popular.