Japanese airsoft chain, FIRST, got the Sightmark-Core Shot A-Spec Reflex Sight available and their Tokyo store gives an overview of this optic for use by airsoft players... "For avid shooters, the Sightmark Core Shot A-Spec FMS Reflex Sight brings precision accuracy and reliability to high-stakes competition shooting and hunts of a lifetime. Designed to deliver better optic performance, the shooters A-Spec FMS Reflex Sight improves accuracy for recreational, professional and competitive environments. The Core Shot bridges the gap between the Mini Shot and Ultra Shot for avid shooters wanting a compact sight.

• Red Reticle Illumination with Low Battery Indicator
• Digital Switch Controls
• 8 Reticle Brightness Levels
• Night Vision Compatible
• 1 Hour Auto Shutoff
• Wide Lens with Scratch Resistant Coating
• Slotted Windage and Elevation Adjustments"