Owner's Manual

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Charge the MDR again and squeeze the trigger, this time holding the trigger to the rear. Re-charge the rifle and
release the trigger. There should be an audible “click” sound as the trigger resets. Repeat this multiple times to
confirm functionality.
Insert an EMPTY magazine and charge the rifle. Pull the charging handle to the rear and the bolt carrier group
should catch on the last round holdback catch. Lock the charging handle forward, then press the bolt catch
release. The bolt carrier group should release and go into battery.
Function Check, Loading, Reloading, Unloading, Firing
RIFLE OPERATION
Before operating a firearm, ensure it is in a safe environment to do so, observing all the rules of firearm safety.
a) Function Check
1.
2.
3.
4.
5.
Ensure the rifle is clear and safe by removing the magazine, placing the rifle safety selector on “Safe” and
cycling the rifle multiple times to ensure a clear chamber, and visually inspecting the chamber to confirm,
(see page 23).
Point the rifle in a safe direction, charge the rifle, and squeeze the trigger. The trigger should not disengage from
the hammer when the safety selector is in the “Safe” position.
Change the safety selector to “Fire, then squeeze the trigger and release. The trigger should disengage from
the sear, the hammer should make an audible ‘snap’ sound as it hits the firing pin/bolt carrier group.
b) Loading
1.
2.
3.
To load the MDR, first ensure it is in a safe environment to do
so, observing all the rules of firearm safety, and the safety
selector switch is in the “Safe” position (page 11) Ensure the
cartridges loaded into the magazine match the chambering of
the conversion kit.
Insert cartridges into the magazine by pressing the cartridge
(parallel to the magazine) downwards into the magazine.
Ensure the face of the cartridge is at the rear-most position
inside the magazine. (Fig. b-1)
Repeat until the magazine is full, or less, if desired.
OPERATION
OPERATION
Fig. b-1
Note: For reliable function with the .308/7.62 NATO chambering, it is
recommended that only non-steel cased ammunition be used in the MDR.