Armasight NSMSIRIUS1GMDA1 Sirius GEN 3 Ghost MG Multi-Purpose Night Vision Monocular - Manual (Page 21)

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3. Loosen the screw (B). With the button (C) pushed down, insert the Sirius rail into the guide (D) of the
helmet mount bracket. Tighten the screw (B).
4. Put on the helmet with the Sirius attached.
5. Push the button (F) and move the unit along the slide-rail (G) until the most comfortable position is
reached.
6. Adjust the mount for comfortable using. Loosen the screw (B) and move the unit along the guide (D)
for eye relief adjustment. Turn the lever (H) and move the unit along vertical slide-rail until the most
comfortable vertical position is reached.
7. The helmet mount has a flip-up mechanism. Push the button (E) of the mount bracket and lift the unit
up until it reaches its top position. Once it reaches this position, the unit will turn off automatically.
8. Push the same button (E) to lower the Sirius into the proper viewing position. Turn the unit on to
proceed with your mission.
In Figure 3-3, the Sirius is shown in the correct position for the left eye. To readjust the Sirius for the left
eye, reverse its positioning and reinstall it on the helmet mount bracket (see Figure 3-3). Use the second
unit rail located on the opposite side of the unit. Push the button (F) and move the unit along the slide-
rail (G) until the most comfortable position is reached.
To remove the Sirius from the helmet mount, loosen the screw (B), push down on the button (C), and
slide the unit out of the guide (D). To remove the flip-up mechanism from the helmet mount, loosen the
lever (H), pull the knob out (I), and slide the flip-up mechanism out of the vertical rail.
C
D
E
G
B
A
FIGURE 3-3. MOUNTING THE SIRIUS TO A HELMET
F
A
H
I
3.1.4 MOUNTING THE SIRIUS TO A WEAPON WITH A PICATINNY MOUNT
ADAPTER
NOTE :
The Sirius is not a weapon sight. However, it can be used in conjunction with a collimator dot
sight or laser aiming device.
To mount the Sirius to a weapon using the optional Picatinny mount adapter, perform the following:
1. Loosen the clamping knobs (A) on the weapon mount adapter. Position the adapter on the weapon
rail. Adjust the adapter’s fore-and-aft positions by loosening the clamping knobs (A) and repositioning
the adapter on the weapon rail. Tighten the clamping knobs (A).
2. Align the Sirius and the weapon mount adapter. Slide the unit backwards until its alignment boss is
parallel with the alignment groove (B) on the adapter. Push backwards until you hear a clicking noise
indicating that the unit is locked into the weapon mount adapter.