UNITY FAST THERMAL RISER BLACK

The Unity Tactical FAST Thermal Riser is a compact height-of-sight adapter designed to bring thermal clip-on optics up to a 2.05" optical centerline. Whether you're mounting a thermal imager on a Unity Tactical Modular Weapon System via a CTM (UNITY Clip-on Thermal Mount) or raising an OEM 1.54" clip-on mount to meet your primary scope height, this riser solves the common problem of thermal-to-primary-gun sight offset. Built for shooters and hunters who run thermal overlays alongside or in place of traditional daytime optics, the FAST Thermal Riser keeps your sight picture consistent without the need for awkward holdovers or target re-acquisition between engagement methods.

This is a no-fuss accessory that speaks to the growing adoption of thermal imaging in field shooting. Compact and lightweight, it integrates seamlessly with Picatinny rail systems and fastens via standard bolt clamps, so installation is straightforward on most modern rifle platforms. The black finish matches standard tactical aesthetic while resisting corrosion in the field.

If you're running a thermal as your primary optic or as a second-gun-mounted system, getting the centerline right reduces fatigue and improves speed on target. The FAST Thermal Riser is the kind of unglamorous but essential accessory that separates a purpose-built thermal rig from a cobbled-together one.

Key Features

• Raises thermal clip-on mounts to 2.05" optical centerline for consistent sight picture
• Works with Unity Tactical CTM (UNITY Clip-on Thermal Mount) or OEM 1.54" clip-on thermal systems
• Compact, low-profile design minimizes added weight and complexity
• Standard Picatinny rail clamp with two cross bolts for secure, repeatable mounting
• Black finish, corrosion-resistant construction

Specifications

Frequently Asked Questions

Will this thermal riser work with my clip-on thermal imager?

Yes—the FAST Thermal Riser is designed to work with UNITY CTM-mounted thermals and standard OEM 1.54" clip-on thermal mounts. If your thermal uses one of those interfaces, this riser will raise it to 2.05" centerline. If you're unsure which mount standard your thermal uses, check your imager's documentation or contact us.

What is optical centerline and why does it matter for thermal mounting?

Optical centerline is the height above the rail at which your optic's aim point sits. Matching centerline between your primary scope and a thermal overlay or backup system ensures you don't have to shift your point of aim or cheek weld when switching between them. A consistent 2.05" centerline lets you move between optics and stay on target without rezeroing or holdover adjustments.

Is this riser Picatinny compatible?

Yes. The FAST Thermal Riser clamps to standard Picatinny rails via two cross bolts, making it compatible with any modern rifle with a picatinny-topped receiver or handguard.

Can I use this with weapons other than rifles?

The riser is designed for Picatinny rail mounting, so it will work on any platform—rifle, carbine, or other firearm—that features a picatinny top rail and thermal mounts compatible with UNITY CTM or OEM 1.54" clip-on systems.