VORTEX Red Dot SPARC AR (LED Upgrade)Product information "VORTEX Red Dot SPARC AR (LED Upgrade)" Looking for the one optic you need to max your ARs effectiveness in any environment? The SPARC AR features rugged construction thats still compact, with a lightweight form factor. The 2 MOA dot is as easy as point and shoot its quick to acquire in close quarters, but fine enough for pin point accuracy at extended ranges. With a 50,000 hour battery life and night vision compatibility at the