Unity Tactical FAST(TM) Micro-SB Mount w/ Built-In BUIS (Aimpoint CompM5s / M5b / Duty RDS) Overview The Unity Tactical FAST(TM) Micro-SB Mount is purpose-built for taller "micro" red dot sights like the AimpointA(R) CompM5s, CompM5b, and Duty RDS. It delivers the FAST(TM) standard 2.26" optical centerline for a faster, heads-up sight picture, while also integrating a fully adjustable front and rear BUIS that remain visible under all UNITY FTC magnifier mounts. Unlike the standard FAST(TM) Micro mount, the Micro-SB uses a non-standard BUIS height (0.95") that is not compatible with traditional front sight posts-so the front post comes factory installed and is intended to be used as a complete system. Key Features a Designed specifically for AimpointA(R) CompM5s, CompM5b, and Duty RDSa FAST(TM) 2.26" optical centerline for rapid dot acquisition and heads-up posturea Built-in front and rear BUIS are fully adjustablea Integrated BUIS remain visible under all UNITY FTC magnifier mountsa Non-standard BUIS height prevents compatibility with traditional front postsa Front post is factory installed (not intended to be swapped for a standard-height system)a Includes a 2 cross bolt rail clampa Compatible with FAST(TM) QD Lever (sold separately) Specifications a Height: 2.26" optical centerlinea Compatibility: AimpointA(R) CompM5s, CompM5b, Duty RDSa BUIS: Fully adjustable front and reara Rail Mount: 2 cross bolt rail clamp (FAST(TM) QD Lever compatible, sold separately)a Material: 7075-T6 Aluminuma Coating: Type III Hardcoat Anodizeda Weight: < 3.5 oz / < 99.2 ga Dimensions (W x L x H): < 1.4" x 2.2" x 1.4"a Dimensions (cm): < 3.6 x 5.6 x 3.6 Applications a Duty rifles requiring a taller optic height for modern gear usea Magnifier setups using UNITY FTC mountsa Compact rifles needing built-in backup sights without extra rail clutter Additional Features a Optimized specifically for taller micro optics (CompM5s/M5b/Duty RDS)a Maintains a clean setup while keeping backup aiming capability built in