The Unity Tactical FAST Micro-SB is specifically engineered for Aimpoint CompM5s CompM5b and Duty RDS mini red dot sights featuring integrated fully adjustable backup iron sights (BUIS) and a 2.26" optical centerline height.Unity Tactical FAST Micro-SB Mount in FDE finishCompatible with Aimpoint CompM5s CompM5b and Duty RDS sightsBuilt-in fully adjustable front and rear backup iron sights2.26" to optical centerline for improved ergonomicsNon-standard 0.95" tall BUIS with factory-installed front post2 cross bolt rail clamp included (FAST QD Lever compatible)7075 T6 aluminum construction with anodized finishBUIS visible under Unity FTC magnifier mountsPerfect for tactical applications requiring reliable backup sighting systems and optimal sight height for modern shooting techniques this mount combines durability with functional design for professional and recreational shooters.