Eminus offers multi-coated lens for maximum brightness, clarity, and contrast. The 30mm tube for increased turret adjustment and increased brightness. Illuminated Tacplex reticle for precision measurement with 1/4-MOA locking target turrets and MOA based reticle with leaf spring turret control for positive and responsive click adjustments. This model comes with a fixed focus. Water and shock resistant, fog proof construction, nitrogen gas filled. Also includes Aptus-M1 mount. Generous eye relief. Has a hardcoat matte finish. Lifetime limited warranty.