PDW650 The PDW650 is a purpose-built light designed to simplify and streamline your rifle setup with a cost-effective integrated mount. Compatible with Picatinny rail segments, this package is perfect for 12 o'clock mounting or use with quad rails (i.e. RIS II, RAS, or others). Rugged and low-profile, the PDW650 is ready out of the box. Features & Specifications: Integrated Picatinny Mount: No extra parts required for mounting. Streamlined profile: Streamlined with your handguard at 12 o'clock, reducing snags. Modular Design: Compatible with a variety of heads and tail cap options. Front-loading Battery: Allows for quick, tool-less battery swaps. Simply unscrew the light head. Tail cap with constant click and momentary half-press operation. Your choice of light head: OKW V2 Light Head: 1300 Lumens, 95,000 Candela. Our choice for magnified optics or for throw-oriented performance with usable spill. PLH™v3 Light Head: 1500 Lumens, 60,000 Candela. Our choice for the best-balanced head, combining usable spill and throw. 75 minute runtime (either head) Fully potted drivers tested to withstand select fire SCAR 17 recoil. 6061 Series Aluminum Bezel with Mil-Spec Hard Anodizing. Ultra-clear BOROFLOAT® lens with 98-99% light transmittance. Made in the USA with a lifetime guarantee. Weight: 6.7oz (with battery), 5.0oz (without battery). Width/Diameter: Body 1.02", Head 1.18". Length: 5.28" with included tail cap. Included in the Package: PDW650 light body Tail cap One rechargeable 18650 battery. Choice of emitter for tailored performance. (package dependent). Optional 2-cell XTAR charger (package-dependent). Due to the chemical process that takes place during Type 3 Hardcoat, the finish on the product can vary from one to the next, even if it is the same batch. We strive to create as tight of a range as possible, and match parts to the best of our ability, but be aware that there may be slight variation between sections of the light.