The AR Riser Mount is custom designed to fit AR-15 rifles. Raises mounting platform to 3/8'' adding height to attach a scope or optic accessory. Features plenty of slots for maximum scope ring adjustments and the peep sight design allows you to use rifle's iron sight. Made from T6 Aluminum, this mount is durable even under the most demanding conditions. Other features include Weaver/Picatinny style flat top and two easy to use thumb lock nuts for quick installation.