Viridian Closed Emitter Green Dot Reflex Sight with Viridian RFX 44/45 Mounting Adapter plate for Glock MOS - 5 MOA Green - The all-new RFX45 delivers premium features at an exceptional value. Built with a rugged 6061 aluminum housing, it's designed for durability without sacrificing performance. Fully multi-coated lenses provide a clear sight picture, while audible and tactile adjustments make zeroing precise and straightforward. With INSTANT-ON activation, memory retention, auto shutoff, and an impressive 50,000-hour battery life, the RFX45 is engineered for reliability when it matters most. Viridian set the standard for visibility nearly two decades ago by pioneering green laser pistol sights, helping reshape the optics landscape. Continuing that legacy, the company introduced the RFX line of reflex sights in 2021, featuring highly visible green LED technology. The RFX45 Closed Emitter Green Dot Sight builds on that innovation, offering a durable, high-performance optic for today's shooters. Viridian RFX 44/45 Mounting Adapter plate for Glock MOS. Footprint: ACRO; Lens Dimension: 24mm x 15.5mm; Lens Coating: Fully Multi Coated Glass; Settings: 10 | 8 Visible and 2 Night Vision; Operation: INSTANT-ON + User Controlled; Dimensions: 1.9in (L) x 1.1in (W) x 1.1in (H); Housing Material: Machined 6061 Aluminum w/ Hard Coat Anodization; Environmental: IPX6; Operating Temperature: -4F to 130F;