Zero Tech Optics Trace H.A.L.O Features The Zero Tech Optics Trace H.A.L.O short for Heavy Duty Aspherical Lens Optic is built around a 7075 aluminum body engineered to withstand extreme conditions with waterproof shockproof and fog proof construction. The 3 MOA red dot reticle offers ten brightness settings including two dedicated night vision compatible levels so the sight remains usable from bright daylight through to low light operations with night vision equipment. An aspherical lens design provides a notably wide field of view compared to standard reflex sight optics improving situational awareness and speeding up target acquisition. Fully multi coated optics keep the sight picture clear and bright transmitting light efficiently even in dim conditions. A top loading CR2032 battery design is one of the sight s most practical features allowing battery changes without disturbing the optic s zero or mounting alignment a real time saver compared to designs that require removal from the rail. Auto sleep and shake awake functionality driven by a built in motion sensor extend battery life dramatically by powering the sight down during periods of inactivity and instantly waking it at the slightest movement contributing to a rated battery life of 50 000 hours. Adjustments move in precise 1.5 MOA per click increments across 80 MOA of total windage and elevation travel giving shooters plenty of room to zero the sight to their rifle or pistol. Carrying an RMSc footprint and including a fitted Picatinny rail adapter protective slip on cover adjustment tool and lens cloth the Zero Tech Optics Trace H.A.L.O is a complete ready to mount reflex sight package available for sale at GrabAGun. Zero Tech Optics Trace H.A.L.O Specifications Manufacturer: Zero Tech Optics Model: Trace H.A.L.O Color: Black Material: Aluminum Reticle: 3 MOA Red Dot Magnification: 1x Objective: 28mm x 20mm Mount Type: RMSc Footprint Brightness Settings: 10 Day / 2 Night Battery Size: CR2032 Battery Life: 50 000 hrs Windage Adjustment: 80 MOA Elevation Adjustment: 80 MOA Proofs: Fog / Shock Proof / Waterproof Weight: 2.75 oz Click Value: 1/2 MOA Available At: GrabAGun