Arisaka Defense Mk2 Mount Red Dot Mount Fits EOTECH EXPS 1.93" Optic Height Anodized Finish Black. The OEM mount has a centerline optic height of 1.725" making it impossible to align at 1.93" or requiring the use of a riser to get to 2.26". The Arisaka Mk2 mount completely replaces the OEM mount alleviating the need to use a riser saving weight and providing a 1.93" optic centerline height. Specifications for Arisaka Defense Mk2 Mount Red Dot Mount Fits EOTECH EXPS: Manufacturer: Arisaka Defense Additional Features: EOTECH EXPS Mount Features of Arisaka Defense Mk2 Mount Red Dot Mount Fits EOTECH EXPS: Direct Replacement for OEM Mount Package Contents: Arisaka Defense Mk2 Mount Red Dot Mount Fits EOTECH EXPS