The up and coming budget priced optic makers Holosun will soon be releasing their first open flex sight the HS510C. You can keep the HS510C on all the time because it’s powered by a solar cell with backup power from a CR2032 battery during low light conditions. The reticle can be switched from either a red dot or a circle which is a pretty cool feature. The battery life is rated at 50,000 hours with the circle reticle at a mid brightness setting and 20,000 hours with the single red dot also at mid brightness. It’s 10 DL & 2 NV compatible as well. The red dot is 2 MOA while the circle is 65 MOA.
It has integrated dual laser sights and it’s parallax free with unlimited eye relief. It has a large 32mm x 24mm window with multi-layer coated lenses with 1x magnification. It also features a Titanium alloyed shock resistant hood to protect the optic. The HS510C weights in at 264 grams and it includes a quick release mount and AR riser. Holosun claims it’s waterproof to 1 meter and can be stored from -40C to 70C (-40F to 158F) and has a working temperature between -10C to 50C (14F to 122F). Holosun also includes a lifetime warranty on the metal structure of their optics while the optical system is covered with a 5 year warranty and the illumination systems are covered under a 3 year warranty in case you have issues with your optic. Their site has the HS510C listed with a MSRP of just $319.99, check out Holosun.com for more info.