2.25 overall. Water resistant. Impact resistant. Rechargeable. Weapon mountable. Green laser. High Performance cool white LED light. 600 max lumens. 45min max runtime. 130m beam distance. Magnetic charging cable. Includes: Picatinny rail mount adapter; Oval point set screw; Cone point set screw; (1) H1.5 socket head wrench. Requires (1) Lithium battery. Boxed.