The ROMEO4XT-PRO is an incredible high quality and compact rifle red dot, it&';s both lightweight and full of advanced features. With 50,000 hours of battery life (that&';s 5.7 years), all from a standard AAA battery, and four swappable reticles, this thing is punching way above its weight class. The mounts included can take the 4XT-PRO from absolute height to lower 1/3rd co-witness. The 4XT-PRO is IPX-8-rated for waterproof and fog proof performance, and is tested to MIL-STD-810 to ensure reliable services. Illumination controls are over the top, providing very easy access while staying clear of kit, slings, and other things that may get in the way on other optics.Key Features : Four different integrated reticles (dot, circle dot, dot with holds, circle dot with holds) 0.5 MOA Adjustments 50,000 hour Run Time 1/2" Hex Mount also included MOTAC: Motion Activated Illumination, which powers up when sensing motion. Reticles shown below: