While optics like the Aimpoint® CompM5s, CompM5b, and Duty RDS share similar mounting patterns, their lower battery compartments or raised base geometries make them taller than standard Aimpoint® Micro (T1/T2/CompM5) red dots. Mounting these "taller" micro sights on standard micro mounts results in an excessively high optic centerline, misaligning the sight picture with auxiliary magnifiers and night vision optics.

The Unity Tactical FAST™ Micro-S is specifically engineered to bridge this geometric gap. By lowering the mounting platform height, the FAST™ Micro-S places the Aimpoint® CompM5s, CompM5b, and Duty RDS precisely at the established 2.26″ optical centerline. This ensures an ergonomic, upright heads-up shooting posture for rapid visual acquisition and effortless passive aiming under night vision. Crucially, it provides 100% full compatibility across the entire line of FAST™ FTC magnifier mounts. CNC-machined from 7075-T6 aerospace aluminum, the FAST™ Micro-S weighs under 2.5 oz, comes standard with a two cross-bolt rail clamp, and accepts the optional FAST™ QD Lever.

Key Features

• Tailored Height Geometry: Specifically designed for taller micro red dots (CompM5s, CompM5b, Duty RDS) to maintain precise optical baseline parameters.
• 2.26″ Optical Centerline Height: Elevates your sight line to 2.26" for improved visual processing speed, comfortable posture, and seamless NVG passive aiming.
• Full FTC Magnifier Compatibility: Integrates flawlessly with all Unity FAST™ FTC (Flip-to-Center) magnifier mounts for unified optical axis alignment.
• Ultra-Lightweight 7075-T6 Aluminum: Machined from high-strength 7075-T6 aluminum with Type III hardcoat anodizing, weighing less than 2.5 oz (70.9 g).
• Modular Rail Clamp System: Features a heavy-duty two cross-bolt clamp interface and supports retrofitting with the FAST™ QD Lever.

Technical Highlights

• Brand: Unity Tactical  
• Product: FAST™ Micro-S
• Available Colors: Black, FDE  
• Optical Centerline Height: 2.26"  
• Optic Compatibility: Aimpoint® CompM5s, Aimpoint® CompM5b, Aimpoint® Duty RDS
• Magnifier Compatibility: Fully compatible with all FAST™ FTC magnifier mounts
• Material: 7075-T6 Aluminum
• Coating: Type III Hardcoat Anodized
• Weight: <2.5 oz / <70.9 g
• Dimensions (W x L x H): <1.4 x 2.2 x 1.4 in / <3.6 x 5.6 x 3.6 cm
• Rail Interface: 2 Cross Bolt Rail Clamp (FAST™ QD Lever compatible)  

Applications

Designed specifically for law enforcement officers, tactical shooters, and airsoft enthusiasts using Aimpoint CompM5s, CompM5b, or Duty RDS optics who demand a 2.26" optical centerline height and complete alignment with FTC magnifier mounts.

FAQ

• Q: What is the difference between the Unity FAST Micro and FAST Micro-S mounts?
  • A: The FAST Micro is designed for standard-height optics (Aimpoint T1/T2/CompM5). The FAST Micro-S features a lower platform designed specifically for taller optics (CompM5s, CompM5b, Duty RDS) to achieve the exact same 2.26" optical centerline.  
• Q: Can I use the Aimpoint Duty RDS on a standard FAST Micro mount?
  • A: It is not recommended. The Duty RDS on a standard FAST Micro mount will sit higher than 2.26", causing optical misalignment with FAST FTC magnifier mounts. The FAST Micro-S is required for correct alignment.  
• Q: Does the FAST Micro-S support a quick-detach (QD) lever?
  • A: Yes, while it comes standard with a 2 cross bolt rail clamp, it is fully compatible with the retrofittable FAST™ QD Lever.