Surefire LM1-B 3-Volt White Light For Dedicated Forends

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Complete The Look

The Surefire LM1-B 3-Volt White Light For Dedicated Forends is a replacement for the original incandescent or LED reflector-type head and battery housing of SureFire 600-series and 900-series dedicated forend WeaponLights, such as Shotgun Forend WeaponLights. This light bezel gives you a perfectly compact head/housing unit, using only a single 123A battery that generates 500 lumens of brilliant white from a virtually indestructible LED emitter. The TIR lens produces a more concentrated, farther-reaching beam for close- to mid-range engagements. With a one-hour runtime, per battery, resulting in gradually decreasing output afterward. The body is constructed out of aerospace aluminum with a Mil-Spec hard-anodized finish, the LM1 is O-ring sealed for reliable operation in all weather conditions


  • Fits all versions of these forend WeaponLights: 617, 618, 620, 621, 623, 328, 628, 629, 636, 917, 918, 920, 923, 936
  • Virtually indestructible LED and TIR lens produce brilliant beam optimized for close- to medium range applications
  • O-ring and gasket sealed for excellent resistance to the elements
  • Rugged, durable and combat ready Hard Anodized aluminum body and tempered window

Specifications and Details

  • High Output: 500 lumens
  • High Runtime 1 hour
  • Peak Beam Intensity: 7,600 candela
  • Batteries: One 123A lithium (not incl.)
  • Length 2.4 in (6.1 cm)
  • Distance: 175 meters
  • Body Construction: Aluminum
  • Finish: Mil-Spec Hard Anodized
  • Weight w/ Batteries: 1.7 oz (48 g)
  • Bezel Diameter: 2.4 in (6 cm)