The EOTech EXPS3-4 Holographic Sight, NV Compatible, 65 MOA ring with (4) 1 MOA dots Reticle (EXPS3-4) has been developed to optimize the functionality of the HWS. The buttons have been moved from the back to the left side for instant get entry to, allowing a Eotech magnifier, night vision, or a back up iron sight to fit closely to the HWS body. This new button position allows the user to operate the HWS function switches easier than ever before. The Eotech EXPS3-4 is configured with a new ballistic matching reticle image. The battle tested circle/dot reticle will probably be offered together with a series of 1 MOA aiming dots which are vertically aligned and calibrated specifically for the ballistic drop of .223 caliber ammunition. The reticle provides 4 aiming dots for target distances of 0-300m, 400m, 500m, and 600m. The usage of a magnifier is stongly advisable. WARNING: The HWS Model EXPS Eotech is controlled under the Export Administration Regulations (EAR) ECCN 0A987, and is probably not exported to a Foreign Person, either within the U.S. or in a foreign country, with out a license or exception from the U.S. Department of Commerce.