GG&G MIL-STD-1913 Foregrip Rail Mount for Tactical Flashlights. The GG&G MILSTD-1913 Tactical Illuminator Mounting Rail weighs a mere 0.5 ounces and is under 2" long. This GG&G Mounting Rail is as compact and lightweight as the flashlights themselves. The GG&G Tactical Light Rail Mount is machined from solid billet 6061 T6 aircraft grade aluminum alloy using modern CNC machinery. After being dehorned and bead blasted the mount is Type III hard-coat anodized matte black to mil-spec so as to provide a hard combat proven finish. The GG&G MIL-Spec-1913 Light Rail for AR15/M16 Rifles can be easily installed by the operator with basic hand tools. GG&G Tactical recommends that the illuminator rail be attached to the handguard in a location where both the momentary-on (rotate counter-clockwise) and constant-on (rotate clockwise) switch assembly can be reached by the index finger of the support hand. For a right-handed operator this will usually be on the front of the top handguard just to the right of the centerline. Specifications for GG&G Tactical Illuminator Rail: Material: 6061 T6 Aluminum Finish: Type III Hard-coat Anodized Matte Black Weight: 1/2 oz. Length: >2" Features of GG&G 1239 Mil-standard Flashlight Rail: Light weight Easy to install All edges de-horned to protect the operator Low profile design Meets MIL-STD 1913 Package Contents: GG&G MIL-STD-1913 Foregrip Rail Mount for Tactical Flashlights What firearm models does the manufacturer say GG&G MIL-STD-1913 Foregrip Rail Mount for Tactical Flashlights is compatible with? The manufacturer says that GG&G MIL-STD-1913 Foregrip Rail Mount for Tactical Flashlights is compatible with AR-15 M16