A disclosed system includes a computing device that generates a virtual reality simulation, a head mounted display worn by a user, and a peripheral device having a haptic actuator. The system is configured to generate an immersive simulation experience for a user of the system and to control and update the virtual reality simulation based on detected motion of the peripheral device and signals generated by the peripheral device in response to user input to the peripheral device. The peripheral device includes a trigger that causes the haptic actuator to generate haptic reaction forces/impulses in response to actuation of the trigger, with actuation of the trigger further influencing the virtual reality simulation. The peripheral device includes first and second grips and is configured to be held by one hand of a user holding the first grip or by two hands of the user holding the first and second grips.