Founded in 2008 and based in Houston, TX USA, Primary Arms® Optics is a leading innovator in tactical optics, offering a comprehensive selection of rifle scopes, prism scopes, red dot sights, optic mounts, and accessories. Their Advanced Combined Sighting System (ACSS®) is a high-performance reticle solution to the challenges of modern marksmanship, distilling complex mathematics into intuitive holdovers that enhance your speed and precision. Each ACSS reticle is specially designed to outperform in real-world applications, incorporating a mix of tools to deliver instant firing solutions. These tools may include ballistic drop compensation, auto-ranging stadia, wind holds, moving target leads, or an infinitely-precise center chevron. Primary Arms Optics produces several tiers of products to meet the needs of any budget. The premier PLx® optics line prioritizes clarity and craftsmanship with first-class materials. The mid-tier GLx optics incorporate premium technologies with approachable pricing, while the popular SLx® optics offer both proven reliability and value. Every Primary Arms Optics product is hand-inspected at their Houston-based headquarters, and all their products come with a Primary Arms lifetime warranty.