Product DescriptionThe Streamlight ProTac Rail Mount 1L-X USB is a compact, multi-fuel, high-output tactical weapon light built for short-barreled rifles, carbines, and submachine guns. It runs on either one Streamlight SL-B9 rechargeable lithium-ion battery pack or one CR123A battery for flexible power options in the field. A gasket-sealed glass lens helps protect the optics, and the included M-LOK mount provides a secure, low-profile mounting solution for compatible rail systems.Product Highlights Compact rail-mount tactical light designed for SBR, carbine, and submachine gun platforms Multi-fuel power: accepts Streamlight SL-B9 rechargeable battery pack or a CR123A lithium battery Standard push-button tail switch for simple, reliable activation Gasket-sealed glass lens for added durability and protection Includes an M-LOK mount for compatible handguards and rail systems Specs Brand: Streamlight Manufacturer Part Number: 89027 UPC: 080926890275 Battery Type: SL-B9 rechargeable lithium-ion battery pack or CR123A lithium Length: 4.64 in (11.79 cm) Width: 1.37 in (3.48 cm) Height: 1.72 in (4.37 cm) Weight: 5.12 oz (145.2 g) with CR123A; 5.22 oz (148.0 g) with SL-B9 Lens: Glass (impact-resistant Borofloat, AR coated) Case Material: 6000 series machined aircraft aluminum with black anodized finish Included Mount: M-LOK Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.