The Streamlight TLR-4 is a compact, lightweight weapon light and laser combination specifically designed for the H&K USP Compact. Crafted from durable Black Polymer, this Ambidextrous unit features a secure Rail Clamp and Picatinny Rail mount type. It delivers a 170 Lumens C4 LED output with a 115-meter range and includes an integrated Red Laser for precision aiming. The water-resistant design is powered by a CR2 battery, offering up to 15 hours of run time. With its Borofloat glass lens and intuitive switch, this 2.81 oz unit provides reliable performance in a low-profile package. Safety Note: This unit features a high-intensity C4 LED and a Red Laser; avoid direct eye exposure. Ensure the rail clamp is properly tightened to your H&K USP Compact to prevent shifting during use.