Holosun DMS-GL6 (2 MOA Dot)

The Holosun DMS-GL6 2 MOA is the aluminum, single-dot version of Holosun's direct-mount enclosed red dot for the Glock 17, Glock 19, and Glock 45 Gen6 Optic Ready System. Like the titanium MRS model, it mounts to the slide without any Glock adapter plate, which removes the factory polymer ORS plate and its loose, fenceless interface from the stack. It sits low enough to co-witness with factory-height Glock iron sights.

The housing is 7075-T6 aluminum with a hard-anodized finish, and the sight weighs 1.23 oz, a quarter ounce less than the titanium MRS version. The reticle is a single red 650nm 2 MOA dot; Holosun also sells green (540nm) and gold (590nm) versions. It drops the MRS model's selectable reticle and Solar Failsafe but keeps the forward-facing light sensor for automatic brightness, eight daylight and four night-vision manual settings, Shake Awake, Memory Mode, and lockout mode.

A side-tray CR1620 changes without removing the optic and runs up to 50,000 hours on setting 6. Adjustments are 1 MOA per click with plus or minus 30 MOA of windage and elevation travel. The window is 0.80 by 0.63 inches, the body is 1.89 by 1.07 by 0.95 inches, and Holosun rates it IP67 with 5,000 G vibration resistance. The Gideon Optics Valor Mini Gen 6 is the closest direct-mount competitor: it is lighter at 1.07 oz with a 3 MOA dot, while the DMS-GL6 adds automatic brightness and a finer 2 MOA aiming point.