Tactical Fore End Grip w/750 Lumen Green Laser - 3w LED 750 Lumen Lamp - 2-stage light/constant/strobe with choice of green or red laser - Lasers equipped with precise windage and elevation adjustments - Heavy-duty construction for durability - Positive Locking recoil key for sock absorption and consistent laser position - Waterproof shockproof and fogproof for peace of mind - Length: 2.80 - Width: 2.30 - Height: 5.40 - Weight: 14 oz - Battery: CR123A-2 PCS