Aimpoint 3X-C Magnifier - 39mm FlipMount & TwistMount Base - The Aimpoint 3X-C Magnifier is a premium optic designed to increase capabilities for observation or target acquisition at longer distances. Whether it is paired with an Aimpoint red dot sight or used as a hand-held monocular, the 3X-C provides a crisp sight picture with a generous field of view. Utilizing the red dot in Aimpoint sights as the aiming reticle eliminates the need for re-zeroing when shifting between non-magnified and magnified aiming. This rugged magnifier module is fully waterproof and can withstand temperatures ranging from -31degF to +131degF. A shock absorbing protective rubber cover creates the ideal ergonomic grip when used as a hand-held device. Features include a 6-degree field of view (FOV) and a variable dioptric setting (-2 to +2), allowing the magnifier to be adjusted to the individual user's eye. The 3X-C Magnifier can be used with Aimpoint Micro T-2/H-2 and Comp series sights. Offered at an entry level price point, the 3X-C is the ideal solution to increase your capabilities without sacrificing the advantage of extremely quick target acquisition. 3X optical magnification; Compatible with Aimpoint red dot sights for longer range aiming or observation; Variable (-2 to + 2) dioptric setting; Equipped with FlipMount(TM) and TwistMount(TM) base for easy picatinny rail attachment and removal Also serves as a handheld 3X monocular; No re-zeroing needed when shifting between non-magnified and magnified aiming - utilizes the red dot in Aimpoint sights as the aiming reticle; Ergonomic design for sure grip when used as a handheld observation tool; Shockproof and Waterproof; Legendary Aimpoint ruggedness at an entry level price point; Screws and allen key included; Field of view (FOV): 6deg; Eye relief: 2.2in (56mm); Submersible to 2 Feet (.5 meters); Temperature range -31degF to +131degF (-35degC to +55degC); Weight 7.8 oz / 220g;