The AR Optics 3x Magnifier pairs perfectly with the Bushnell AR Optics TRS-25, but works with any Red Dot. The magnifier mounts behind your optic and it comes with an ambidextrous flip mount. Engage the 3x Magnifier when you need it; flip it out of the way when you don't. It's made with the quality you've come to expect from Bushnell with fully multi-coated optics that provide optimal light transmission and are waterproof, fog proof and shockproof.FeaturesCompatible with any red dot scopeAmbidextrous designFlip mount includedFast-focus eyepieceFully Multi-Coated opticsWaterproof, fog proof, shockproof