FYI Trijicon 1x25mm MRO 2.0 MOA Adjustable Red Dot Sight W/ Co-Witness mount at Optics Planet website usually is $544 but w/10% off coupon was $478.72 free shipping! Lanbo's Armory had it listed at $424.37 same model although out of stock. Optics Planet price matched for $424.37.