Measures 5 3/4" overall. Black lightweight aircraft grade aluminum body with Type III hard anodized black coating. Output: exceeds 40 lumens for over 60 minutes; regulated circuitry for consistent output. Integrated white, red, NVIS and covert (IR) filters. Aggressive knurling on body, head and tail cap. Easier to use while wearing gloves. Weather proof. Reversible MOLLE adaptable clip. Lanyard hole to attach 550 paracord. Made in USA.