SureFire X400UH-A-RD Ultra MasterFire WeaponLight, Red Laser

The SureFire X400UH-A-RD Ultra MasterFire is a weapon-mounted light and red laser assembly designed to interface with SureFire's MasterFire Rapid Deploy Holster. It locks into the holster via cam and pin slots to secure the pistol at an advantageous angle for quick deployment and can be set to activate the light and laser when the weapon is drawn. The unit uses a recoil-resistant LED and a TIR lens to produce a focused beam for identification and situational awareness. Mil‑Spec hard‑anodized aluminum construction with O‑ring and gasket sealing provides durable, weather‑resistant performance.

Key Specifications

• The laser outputs 5.0 mW.
• The laser wavelength is 635 nm.
• The device is powered by CR123A batteries.
• The light uses an LED light source with a TIR lens.
• The body is made from aluminum with a black anodized finish.
• Mounting is via a thumbscrew/universal Picatinny rail interface.
• Switching is ambidextrous with push button/toggle controls at the rear.
• The overall length measures 3.70 inches.
• The head diameter measures 1.125 inches.
• The unit weighs 4.90 oz.

This configuration emphasizes holster-integrated readiness and durable materials for operational reliability. Its ambidextrous controls and secure MasterFire interface simplify one-handed manipulations and rapid deployment, while the sealed aluminum body withstands routine environmental exposure. The X400UH-A-RD is intended for users who value dependable, holster‑ready illumination and aiming assistance in everyday carry and duty applications.