Athlon Midas M3 3x 23.5mm Magnifier - Many times when in the field or during competitions you need to transition between no magnification for speed at close-range and magnification for precision shooting as the situation dictates. The Athlon 3-power magnifier mounts behind a traditional red-dot sight to provide magnification when needed. The mount has the ability to swing out of the way when not in use, but can quickly be placed behind the red dot to increase the magnification for longer mid-range shots. Fully Multi-Coated: Athlon Optic's fully multi-coated glass gives you better light transmission with optimum brightness and true color across the entire light spectrum.; Nitrogen Purged: Paired with a completely sealed chassis, nitrogen gas is used to purge air from the optic to help maintain internal fog-proof and waterproof capabilities.; Waterproof: Regardless of how heavy the rain is coming down or an accidental drop in the water, this sealed and gas-purged optic will remain waterproof.; Aircraft Grade Aluminum; One Piece Chassis; Construction; Fog Proof; Shockproof; Flip Mount; Picatinny Rail Mount;