Holosun 509T X2 - Better Now, Better Now
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.











