Meprolight M-21T Reflex Sight 30mm, 12 MOA

The Meprolight M-21T is a day/night, self-illuminated reflex sight featuring a 30 mm optic and a triangle reticle. It combines a fiber optic collector for daytime illumination with a self-powered tritium source for low-light use, eliminating the need for batteries. The sight ships with a quick-detach Picatinny mount and a dust cover for routine transport and protection.

Key Specifications

• The magnification is 1x.
• The objective diameter is 30 mm.
• The reticle is a Triangle.
• The dot size is 12 MOA.
• Illumination is fiber optic (day) and tritium (night), no batteries.
• The mount is a Picatinny quick-detach interface.
• The weight is 13.12 oz.
• Construction uses steel and glass.
• The field of view is Unlimited.
• The eye relief is Unlimited.

Designed for intuitive, both-eyes-open aiming, the M-21T is appropriate for close-quarters and low-light applications where rapid target acquisition is required. Its self-illuminated system and quick-detach Picatinny interface make it a practical optic for users who need a durable, low-maintenance sight that can work in tandem with magnifiers while retaining zero when remounted.