Built legion-strong and combat-ready the Firefield Impact Mini Reflex Sight packs big red-dot performance into a small ruggedly reliable optic complete with an illuminated 5-MOA red-dot reticle featuring 5 brightness settings. Perfect for ultra-fast target acquisition in close quarters this mission-driven shockproof sight boasts advanced scratch-resistant anti-reflective AR-red coated glass infinite eye relief with 50-yd parallax setting and a crystal clear field of view. IP55 weatherproof protection and a 6061-T6 aircraft-grade aluminum housing keep your sight protected even in harsh environments. The Firefield Impact Mini Reflex Sight mounts easily on a Weaver and picatinny rails and runs up to 40 hrs. on a CR1632 battery. This reflex sight kit includes low profile and co-witness mounts a cover CR1632 battery and adjustment tools. - Compact lightweight design - Digital switch - Illuminated reticle - Rugged mission-ready reflex sight - Compatible with Smith & Wesson Core Glock MOS - IP55 weatherproof and shockproof - 5 brightness settings - 5 MOA reticle - Adjustment Value- Continuous - Battery Life- 40 (On High)-200 (On Low)Hours - Battery Type- CR1632 - Brightness Setting- 1-5 - Elevation Adjustment- 120MOA - Eye Relief- Infinite - Finish/Color- Black Anodized - Fog Proof- No - Height- 25mm - Height- 1inch - Illuminated (yes/no)- Yes - IP Rating (waterproof)- IP55 - Length- 1.9inches - Length- 49mm - Lens Coating- AR Red - Magnification- 1x - Material- Aluminum - Maximum Recoil- 800G - Mount Type- Weaver / Picatinny - Nitrogen Filled- No - Objective overall dimension (mm)- 16 x 21 - Parallax Setting- 50yards - Reticle- 5 MOA Dot - Reticle Color- Red - Shockproof- Yes - Weight- 1oz - Width- 33mm - Width- 1.3inches - Windage Adjustment- 120MOA