Model AR731304 The Bushnell AR Optics Transition 3x Magnifier offers instant red dot magnification when you want it and flips out of the way when you dont. It pairs perfectly with the Bushnell TRS-25 Red Dot but is compatible with any red dot optic. The included ambidextrous flip mount quickly attaches to your accessory rail, and fully multi-coated optics deliver crisp, bright images. Add some power to your favorite red dot with the Bushnell AR Optics Transition 3x Magnifier. Waterproof Construction – O-ring sealed optics stay dry inside, even when totally immersed in water. Shockproof construction – Built to withstand bumps, bangs, drops and the rough-and-tumble environment of the field. Nitrogen Purged Fog-Proofing – Nitrogen inside the scope ensures interior optical surfaces wont fog due to humidity or rapid temperature change. Specifications Magnification: 3x Objective Lens: 24mm Field of View: 32ft / 11m Eye Relief: 85mm Exit Pupil: 7.5mm / 0.295\