Product Features Molded glass aspheric lens with high performance coatings for superior light transmittance and zero distortion 6 MOA red dot with 12 brightness settings TruHold Lockless Zeroing System that utilizes twin adjustment springs Dependable waterproof and fogproof performance Product Specifications Manufacturer: Sig Sauer Magnification: 1x Objective Lens Diameter: 30 mm Illumination: Red Reticle: 6 MOA Material: Aluminum Housing & Steel Shroud Finish: Flat Dark Earth