Unity FAST Holosun FDE Magnifier HM3X & HM3XT FST-HFF
The FAST™ FTC Holosun™ is a purpose-built mount designed to bring the unique footprint of Holosun™ magnifiers into the FAST™ ecosystem. Specifically engineered for the HM3X and HM3XT magnifiers, it provides optimal alignment for a cleaner sight picture when paired with a red dot also mounted at 2.26″.
While the FAST™ FTC OMNI is compatible with Holosun™ magnifiers, the FAST™ FTC Holosun™ provides a custom solution that expands the range of compatible red dots for Holosun
™ magnifiers by optimizing alignment for a cleaner sight picture. When pairing these magnifiers with red dots on a FAST™ Micro—such as the Holosun™ 403 or 503 series—using the OMNI mount results in a partially obstructed sight picture. The FAST™ FTC Holosun™ is specifically engineered to ensure a true, unobstructed sight picture across these configurations.
FAST™ FTC Holosun™ mount utilizes a force-to-overcome mechanism to stow the magnifier below the sight plane and within the footprint of the weapon’s receiver. UNITY’s FTC (flip-to-center) technology replaces legacy flip-to-side designs, removing snag hazards. It includes a low-profile integrated FAST™ QD Lever.
| Specification | Details |
|---|---|
| Height | 2.26″ to optical centerline |
| Compatibility | Holosun™ HM3X, HM3XT |
| Rail Mount | Integrated FAST™ QD Lever |
| Mechanism | Force-to-Overcome |
| Material | 7075-T6 Aluminum |
| Coating | Type III Hardcoat Anodized |
| Weight | < 4.5 oz / < 127.6 g |
| Dimensions (W × L × H) (in) | < 2.4 (Raised) or 2.8 (Stowed) × 1.5 (Rail Coverage) or 1.7 (Overall) × 3.5 (Raised) or 2.2 (Stowed) |
| Dimensions (W × L × H) (cm) | < 6.1 (Raised) or 7.1 (Stowed) × 3.8 (Rail Coverage) or 4.3 (Overall) × 9.0 (Raised) or 5.9 (Stowed) |
The Unity FAST Holosun FDE Magnifier HM3X & HM3XT FST-HFF mount is a premium magnifier mounting solution engineered for shooters who want faster transitions, improved ergonomics, and rugged reliability. Designed specifically for compatibility with the Holosun HM3X and HM3XT magnifiers, this Unity Tactical FAST™ mount delivers a high-performance upgrade for modern rifle optics setups.
Featuring Unity’s signature 2.26-inch optical centerline height, the FAST mount positions your magnifier at an elevated height that promotes a more natural heads-up shooting posture. This is especially beneficial when running plate carriers, helmets, or night vision equipment, where traditional lower mounts can force an uncomfortable cheek weld. With the FAST height, shooters gain improved situational awareness, quicker target engagement, and reduced neck strain during extended training sessions.
The FST-HFF model comes in a durable Flat Dark Earth (FDE) finish, making it an ideal match for FDE rifle builds, optics, and tactical accessories. Built from lightweight but strong 7075-T6 aluminum and finished with Type III hardcoat anodizing, this mount is designed to withstand heavy recoil, harsh environmental conditions, and demanding field use.
The mount includes an integrated FAST™ quick-detach (QD) lever, allowing fast installation or removal from any standard Picatinny rail while maintaining a secure lockup. Its Force-to-Overcome flip mechanism enables rapid deployment and stowing of the magnifier, making it easy to switch between close-range speed and magnified precision without losing momentum.
Whether you’re building a duty-ready AR-15, a tactical carbine, or a competition rifle setup, the Unity FAST Holosun FDE Magnifier HM3X & HM3XT FST-HFF mount provides a rugged, lightweight, and ergonomic solution that enhances your optic performance and shooting efficiency.
