Upgrade Your Furniture. The SureFire 618LMG-B replaces the factory Remington 870 forend with a tough polymer forend featuring a powerful, integrated LED head and integral ergonomic switching. The right side features a long momentary-on tape switch and a system-disable toggle switch; the left side features a constant-on toggle switch. The 618LMG-B’s virtually indestructible LED is focused by a Total Internal Reflection (TIR) lens that creates a farther-reaching beam that’s well-suited for close- to medium-range engagements. Intuitive rocker switch allows users to deactivate the light for transport, storage, or additional light security. Whether your mission involves breaching an enemy stronghold or repelling home invaders, the 618LMG-B is engineered to improve your survival odds.