Seems solid and well built like the larger version, "Enforcer." With this stun gun it is easy to use the flashlight in the dark and not accidently set off an electric discharge. Wish they used the same button system on the larger Enforcer; you turn that one on and than the flash and stun button are right next to each other with little tactile difference. With this one, the Extreme, the slide switch first goes to flashlight, than pushed past that makes the stun feature active and than a push of a separate button sets off a discharge. No accidental discharges. It also is fantastic that you can charge it with any micro USB charger, the same one you use for a phone or tablet can charge your stun gun; much better than proprietary chargers.