The AGM Front Q-R Adapter for Rattler TC (ARM52-44) is a quick-release front mounting adapter designed to attach the Rattler TC thermal clip-on unit to a daytime riflescope. The included scope clamp adapter accepts scope housings with outer diameters from 39mm to 44mm, with spacers or tape supplied for a secure fit across that range. This product is not exportable outside the United States.

Who this is for

• Rattler TC owners: shooters who already run the AGM Rattler TC thermal clip-on and need a forward-mount quick-release adapter sized for larger objective housings up to 44mm.
• Day-scope users: marksmen mounting the Rattler TC in front of an existing daytime optic and requiring a repeatable, tool-free attachment solution.
• Precision and mid-range rifle shooters: users running calibers up to .308 Win who need a stable clip-on thermal mount without the bulk of a full dedicated thermal rifle scope.

Compatibility with the Rattler TC

The ARM52-44 attaches directly to the front of the Rattler TC thermal clip-on. It accepts scope housings with an outer housing diameter of 39mm to 44mm; the included spacers or tape bring the clamp to a snug fit within that range. Measure the outer housing diameter of your optic before ordering to confirm fitment — the inner clamp diameter is fixed, and spacers cover the span from 39mm to the 44mm upper limit.

This adapter is not compatible with scopes that have an adjustable objective lens (AO) configuration. The rotating AO ring prevents the clamp from seating properly. Additionally, the adapter is not recommended for use on firearms with recoil exceeding .308 Win — heavier dynamic recoil can compromise the clamp's ability to maintain zero and positional integrity.

Specifications

Frequently asked questions

What does this adapter work with?

It works specifically with the AGM Rattler TC thermal clip-on unit. The ARM52-44 is the front quick-release adapter that clamps the Rattler TC onto the objective housing of a daytime riflescope. It is not a universal thermal adapter and is not designed for other AGM models or third-party clip-on thermals.

What scope diameters are supported?

The clamp accepts outer housing diameters from 39mm to 44mm. Spacers and tape are included to fill the gap for housings smaller than 44mm. Measure the outer diameter of your scope's objective housing — not the objective lens diameter — before purchasing to confirm compatibility.

Can I use this with a scope that has an adjustable objective lens?

No. The Rattler TC cannot be attached to scopes with an adjustable objective lens configuration. The rotating AO ring prevents the clamp from achieving a stable, repeatable mount. If your scope has an AO, this adapter is not the correct solution.

What is the maximum recoil this adapter handles?

It is not recommended for firearms with heavy dynamic recoil above .308 Win. Common calibers at or below this threshold — .308 Win, .223/5.56, and similar — fall within the rated operating range. Higher-recoil platforms such as .338 Lapua, .300 Win Mag, or large-bore cartridges exceed the recommendation.

Can this be shipped internationally?

No. This product is not exportable outside the United States. It is subject to US export regulations. By adding it to cart, you confirm you are a person located in the United States with no intention to illegally export the device. Contact us if you have questions about eligibility before ordering.