Athlon Cronus ATS Pro Thermal Clip On 35C-400

The Athlon Cronus ATS Pro Thermal Clip On 35C-400 mounts to existing rifle optics to deliver thermal detection without replacing your current setup. Whether you're hunting at night or conducting surveillance, this clip-on thermal sight bridges the gap between day and low-light shooting. TacticCAL Gun Store in Sunnyvale handles FFL transfer in Sunnyvale for online orders from customers across the Bay Area, including those shopping from San Ramon.

How Clip-On Thermal Sights Work

A clip-on thermal sight attaches to your existing scope or optic rail, letting you toggle between day glass and thermal imaging without removing your rifle from your shoulder. The Cronus ATS Pro uses a 35–400 magnification range to detect heat signatures in complete darkness, fog, and smoke. Unlike replacing your primary optic, this design preserves your zero and keeps your familiar sight picture intact. TacticCAL Gun Store stocks thermal optics for hunters and professionals who need versatile night-capable platforms. Browse our gun store.

Frequently asked questions

What does the 35C-400 magnification range mean for this thermal clip-on?

The 35C refers to the thermal core size, while 400 indicates the magnification power. This range gives you wide-field detection at lower power and tight, distant targeting at maximum magnification. You adjust magnification to match your engagement distance and target size.

Can I use this thermal clip-on on any rifle scope?

The Cronus ATS Pro mounts to standard Picatinny rails and most rifle optics. Verify your scope's top rail is Picatinny-compatible before purchase. Some specialized mounts may require additional adapters not included with this unit.

Where can I ship an online gun order near San Jose?

TacticCAL Gun Store in Sunnyvale receives online firearm orders for buyers throughout the South Bay, including San Jose, Santa Clara, and the surrounding Bay Area. Find gun store Cupertino at TacticCAL.