Or real replica guns such as the Red Guns shown below with our pre-production prototypes attached to them.
Works great in Steam VR with the HTC Vive Tracker attached. Most game functions accessed by shooting a laser at the User Interface
Other game controls are on the Vive hand controller. Red Guns are weighted, correct dimensions and I am using them to demo since they are easier to get into office buildings, hotels and convention centers. A big hit thus far, even with non 12 year olds.
Will send them out to beta testers soon. Production attachments should be universally adaptable, depending on the universe.