The Modlite PL350-PLHv2 Weapon Light package contains a PL350 Pistol light switch and body assembly, and the selected head of your choice. All lights include one 18350 rechargeable battery and a set of PHLSTER ARC Switch paddles. A defining characteristic of the PL350 is its "Out the front" battery change ability, which allows the user to quickly replace discharged batteries with fresh ones, without tools and without removing the pistol light body from the host weapon.FeaturesModular design is compatible with all slim Modlite heads, which lets the end user customize the light output to their specific needsLights include a full set of PHLSTER ARC enhanced WML Switches, further letting the end user tailor the light to fit their hands and shooting methodsThe PL350 is designed to be compatible with current and future Modlite heads, ensuring long life and future upgrade paths