This review details the Holosun 509T X2 enclosed emitter pistol optic. Key features include a Grade 5 titanium housing, nitrogen purging, and a closed emitter design. It offers multiple reticle options (2 MOA dot, 32 MOA circle, or circle dot) and boasts a 50,000-hour battery life for the dot-only reticle. The optic includes a Shake Awake feature, Solar Fail Safe, 10 daytime and 2 night vision brightness settings, and an IP67 submersion rating. It weighs 1.72 ounces and has a window size of 0.66" x 0.90".
This guide details the installation of the Holosun 509T X2 optic, covering various mounting methods including direct milling and adapter plates. It highlights potential co-witness issues with dual-plate systems and offers a comparison against the Steiner MPS, emphasizing the X2's improved glass quality and reticle options. Instruction is provided by an experienced firearms instructor.
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