Owner's Manual

34 35

b) Using and Zeroing the DTRO

To turn the DTRO on, press the button at the front of the optic.

To turn it off, press and hold the button for approximately two

seconds. (Fig. b-1)

The DTRO takes a CR2032 3v battery. It is located on the bottom

of the optic. Once mounted, optic removal will be necessary to

change the battery. (Fig. a-2, page 34)

The DTRO has two adjustment screws, and two lock screws.

The top screw adjusts the up/down and the right side screw

adjusts the left/right. (Fig. b-2)

Before adjusting the zero, use the included flathead screwdriver

to loosen (DO NOT REMOVE) the two set screws on the

back of the DTRO.

To move the dot left or right, use the included screwdriver to

turn the screw on the right side of the DTRO counter-clockwise

or clockwise, respectively. (Fig. b-3)

MRO

Fig. b-1

Fig. b-2

Lock Screws

Up/Down

Left/Right

MRO

a) DTRO and DTRO Mount Installation

DESERT TECH REFLEX OPTIC (DTRO)

To mount the DTRO to the MDR using the DTRO mount, begin

by loosening the rail attach point screw on the DTRO mount with

the supplied 2.5mm hex key. Then place the DTRO mount on the

MDR gas block rail section with the DTRO mount angled back

toward the shooter and tighten the DTRO mount screw with a

torque wrench to 30 in/lb. (Fig. a-1)

Install the DTRO to the DTRO mount by aligning the DTRO mounting

pegs with the DTRO Seal Plate and the bottom of the DTRO, ensuring

the lens is at the front of the DTRO mount. (Fig. a-2)

Install the CR2032 3v battery in the bottom of the DTRO with the

positive side facing down. (Fig. a-2)

Fasten the DTRO to the DTRO mount using the two supplied 2.5mm

hex screws with the supplied 2.5mm hex key. Tighten snug, taking

caution to not strip out the hex screw head, or to over-tighten the

screws on the sight body. (Fig. a-2)

Removal is the reverse of installation.

Fig. a-1

Fig. a-2