Discoveryopt® XED 6–36×56 SFIR FFP-Z MRAD Riflescope

The Discoveryopt XED 6–36×56 SFIR FFP-Z MRAD is designed for precision shooting at medium to long ranges. It combines a 6–36× magnification range, 56 mm objective lens, an XED optical system with HOYA ED glass, and a first focal plane reticle. The matching MRAD turrets provide a 0.1 MRAD click value, while the elevation turret incorporates a Zero Stop mechanism. The riflescope also features a 35 mm main tube, side parallax adjustment, and red reticle illumination with 6 brightness settings.

XED Optical System with HOYA ED Glass

The XED optical system uses low-dispersion HOYA ED glass to reduce chromatic aberration and help maintain image contrast, clarity, and detail at higher magnification settings. The objective lens has a diameter of 56 mm, while the objective bell measures 67 mm externally. The exit pupil ranges from approximately 9.51 to 1.54 mm depending on the selected magnification.

First Focal Plane MRAD Reticle

The reticle is located in the first focal plane, meaning it scales with the target image as magnification changes. Its angular subtensions therefore remain accurate throughout the entire magnification range. The reticle can be used for range estimation and elevation or windage holds. Its center section features red illumination with 6 brightness settings and is powered by one CR2032 battery.

0.1 MRAD Adjustments and Zero Stop

Both elevation and windage turrets use milliradian values, with each click corresponding to 0.1 MRAD, or approximately 1 cm at 100 m. The riflescope provides 35 MRAD of total elevation travel and 18 MRAD of total windage travel. Once the riflescope has been zeroed, the Zero Stop mechanism creates a mechanical return point at the established zero, allowing the elevation turret to be returned quickly after dialing corrections.

6–36× Magnification and Field of View

The 6–36× magnification range allows the shooter to transition from a broader view of the target area to detailed observation and precise aiming at increased distances. The field of view ranges from 5.9 to 0.9 m at 100 yd, equivalent to approximately 6.5 to 1 m at 100 m. Eye relief measures approximately 93–95 mm depending on the magnification setting.

Side Parallax Adjustment

The side-focus control provides parallax adjustment from 40 yd / approximately 36.6 m to infinity. It allows the target image to be focused for the selected distance while minimizing apparent reticle movement caused by parallax and an off-axis eye position.

One-Piece 35 mm Main Tube

The one-piece main tube has a diameter of 35 mm and provides sufficient internal adjustment travel for the elevation and windage systems. Nitrogen purging helps prevent internal fogging, while the IP67 rating provides dust-tight protection and resistance to temporary immersion in water. The manufacturer rates the riflescope for .50 BMG recoil. Its overall length is 425 mm, and its weight is 1,287 g.

Included Accessories

The package includes the riflescope, 35 mm scope rings, sunshade, lens covers, lens-cleaning pen, cleaning cloth, scope-leveling kit, hex key, adjustment tool, user manual, 2 specification cards, and a warranty and inspection card. Before installation, verify that the included rings are compatible with the firearm and mounting rail.

Key Benefits:

• 6–36× magnification range
• 56 mm objective lens
• XED optical system with HOYA ED glass
• first focal plane reticle
• matching MRAD reticle and turret adjustments
• 0.1 MRAD click value
• 35 MRAD of total elevation travel
• 18 MRAD of total windage travel
• Zero Stop mechanism
• red reticle illumination
• 6 illumination brightness settings
• side parallax adjustment from 40 yd / approximately 36.6 m to infinity
• field of view of 5.9–0.9 m at 100 yd / approximately 6.5–1 m at 100 m
• 9.51–1.54 mm exit pupil
• approximately 93–95 mm eye relief
• one-piece 35 mm main tube
• 67 mm external objective bell diameter
• nitrogen-purged construction
• IP67-rated protection
• rated by the manufacturer for .50 BMG recoil
• powered by one CR2032 battery
• 425 mm overall length
• 1,287 g weight
• 35 mm scope rings included
• sunshade and lens covers included