Burris 626640 SMARTCLIP 57mm Universal Scope Extender (U.S.E.)

The Burris 626640 SMARTCLIP 57mm Universal Scope Extender (U.S.E.) is a quick-detach adapter designed to mount Burris thermal clip-on optics to your riflescope's objective lens. If you run a Burris Thermal Clip-On and want the flexibility to attach it securely to your existing scope without permanent modification, this adapter bridges the gap with a straightforward mechanical solution. The screw-on design threads directly onto your thermal clip-on, then uses a quick-detach cam lever to lock onto scope objectives in the 57mm range, making it easy to swap between rifles or remove the thermal unit when you don't need it.

This is purpose-built hardware for hunters and shooters who've already invested in a Burris thermal clip-on and need a reliable way to integrate it with their rifle setup. The quick-detach lever means you're not wrestling with tools or threads every time you want to attach or detach the thermal unit—just clamp and go. Burris designed the U.S.E. system to handle the weight and vibration of thermal optics without creep, so your zero stays put.

Setup is simple: thread the adapter onto your Burris Thermal Clip-On, align it with your scope's objective bell, and tighten the cam lever until snug. No gunsmithing required. The 57mm specification fits standard scope objectives in that diameter range, making this a plug-and-play option if your riflescope falls within that window.

Key Features

• Screw-on design threads directly onto Burris Thermal Clip-On units
• Quick-detach cam lever for fast attachment and removal
• Sized for 57mm objective lenses
• No permanent modification to your scope or thermal unit

Specifications

Frequently Asked Questions

Will this adapter work with my Burris Thermal Clip-On?

Yes, the SMARTCLIP 57mm is designed to screw onto Burris Thermal Clip-On units. The adapter threads onto the clip-on, then the cam lever secures the assembly to your scope's objective lens.

What scope objective sizes does this fit?

This adapter is sized for 57mm objective lenses. If your riflescope has a 57mm objective bell, it should be compatible with this U.S.E. system.

Can I leave the adapter mounted on my thermal clip-on?

Yes. The adapter screws onto your Burris Thermal Clip-On permanently or semi-permanently, so you only need to attach and detach it from your scope when switching between rifles or removing the thermal unit.

How does the quick-detach cam lever work?

The cam lever tightens down to lock the adapter securely onto your scope's objective lens without tools. A quick flip or rotation of the lever clamps or releases the connection, making it fast to attach or remove the thermal clip-on.