Night Optics Spartan 520 2.8x Gen 2+ Night Vision Scope - Manual (Page 8)

OPERATION
3. MOUNTING ON THE RIFLE
4. THE RETICLE
Reticle Brightness can be adjusted by the reticle brightness control buttons (fig. 1-10).
Measurements are in meters at a distance of 100 meters using 2.8x (NS-520).
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NIGHT OPTICS USA WEAPON SIGHTS
NOTE:
Mounting procedure may vary depending on the type of mount used.
NOTE:
If necessary loosen/tighten the tension bolts with a wrench so that the mount is
securely fastened to the rail.
1. Loosen the mounting clamp(s) (fig. 1-11)
2. Mount the NS-520 on the rail of the rifle so that the rubber eyecup is touching
shooter’s eye (add 1”-2” for higher caliber weapons). The position of the device
should be such that the shooter is in the natural shooting position when using the
scope, without needing to lean too far forward or back.
3. Tighten the mounting clamp(s).
4. The NS-520 is now mounted and ready to be sighted-in.
1 cm = 0.3937 in
1 meter = 100 cm
1 meter = 3.281 ft
100 meters = 109.4 yds