Holosun red dot sights dominate USPSA Carry Optics, Open division, and IDPA CO holsters and slides across the country, and the lineup here covers every model competitive shooters are running. The 507C, 507COMP, 508T, 407C, and 407COMP cover the full spectrum of open-emitter footprints for Carry Optics and Limited Optics builds, while the EPS and EPS Carry enclosed-emitter models give Open and CCP shooters a durable, weatherproof dot that shrugs off slide impact and holster wear. Every unit here runs Holosun's solar failsafe backup, multi-reticle switching between dot-only, circle-dot, and Shake Awake power modes, and titanium housings rated for the slide velocities generated by major-power loads. Shooters running RMR-cut slides, ACRO-pattern cuts, or Holosun K-footprint milling will find direct-fit options without adapter plates, and comp-gun builders get the height and window geometry needed to keep the dot centered through recoil. Whether you're outfitting a Production gun for club matches or building out a full Open pistol for Area/Nationals-level competition, this lineup gets you a dot built for the abuse of high-round-count practice and match days. Fast same-day shipping on most orders at Shooters Connection.