The Vortex SPARC red dot sight is a compact alternative to some of the more expensive red dot sights on the market. It is compact and rugged with an O-ring sealed and nitrogen-purged water, fog and shock proof hard-anodized aluminum body. The Vortex Optics SPARC allows both eyes open, unlimited eye-relief aiming for very fast target acquisition and engagement and a 2X magnifier is included for longer ranges – something you don’t get with an Aimpoint. The lenses are multicoated for great light transmission. You have the option of selecting red or green dots in this NV compatible unit. The brightness is controlled via rear facing buttons like an Eotech and gives you 10 day and one night vision setting. Power ON/OFF is on the side.
Like the Aimpoint, this unit is parallax free beyond 50 yards. Adjustments are in 1 MoA clicks with 90 MoA total range of adjustment. The SPARC red dot sight runs on two CR-2354 lithium batteries – battery life is 120 hours on maximum brightness which is OK, but orders of magnitude less than an Aimpoint T-1, so it pays to have some spares close at hand, especially in cold weather.
The Vortex SPARC is supplied with mounts to fit any MIL-STD 1913 Picatinny rail and most Weaver-style bases. The mount that comes with the SPARC red dot sight comes with adapters to enable co-witnessing at either absolute or lower 1/3 height on an AR-15. Better still, the mounting screws are the same size, thread and spacing as the Aimpoint T-1, enabling the use of La Rue quick detach mounts – the 660 is too high for absolute co-witnessing – you should go for the 660HK on an AR.
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