PRICE INCREASE FROM TRIJICON. These are out of my hand, dealer cost has also gone up over $100. The new Trijicon RMR HD takes the iconic RMR to new heights with long-requested enhancements. Compared to the original RMR, the RMR HD features larger, more responsive buttons, an expansive window with a large field of view, and a complex reticle that allows users to choose between a simple 3.25 MOA red dot and a circle dot reticle (or 1MOA dot variant). Constructed from the 7075-T6 aluminum with a weather and wear resistant black finish, this optic features a waterproof housing capable of enduring depths of up to 66 feet, and a tempered glass lens. The RMR HD utilizes a forward-mounted light sensor, which allows the optic to gather precise lighting data directly from the target&';s direction, rather than using ambient lighting information, which avoids washing out the reticle and target. The RMR HD&';s distinct shape enhances its strength by diverting force away from the lens. Additionally, the RMR HD uses maintains the same footprint as the original Trijicon RMR, and as a result this optic allows users to use the same holsters. Features: Top loading battery 3.25 MOA Circle/Dot reticle or 1 MOA Circle/Dot Reticle Battery: CR2032 x1 Battery life: 3 years of continous use Larger window with tempered glass Forward-facing light sensor Upgraded windage and elevation adjustment Index ridge alignment aid Utilizes the RMR footprint Made in America