Guide Orion O635CS 640X512 Thermal Clip-On 35MM 1X
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Description
🔭 The Guide Orion O635CS is a value 640 thermal clip-on that mounts in front of your day scope and turns it into a thermal rifle scope after dark.
It runs a 640x512 12-micron thermal sensor behind a 35mm lens at true 1x, with a 1920x1080 display and a 15mK NETD. The 35mm lens gives a wider field of view, easy to get on target fast in close cover.
A thermal clip-on mounts in FRONT of your existing day scope and turns it into a thermal scope after dark. It holds your zero, so you do not re-sight anything: clip it on, and your rifle shoots to the same point of impact it always has. True 1x magnification means your day scope still runs the show, dial your normal power and shoot like you would in daylight. Take it off and your scope is back to normal glass. One clip-on can serve every rifle you own.
Which Guide clip-on is right for you?
The Orion O635CS is the value 640 clip-on: a high-resolution sensor and a wide 35mm field of view, without a built-in rangefinder, to keep the price down. Step up to the TB650LP if you want a 50mm lens and a built-in rangefinder, or the TB1260LS for the flagship 1280x1024 sensor. Step down to the O435CS for a 400 sensor.
Key Features
- 640x512 thermal sensor, high-res detail
- 35mm lens, true 1x, wide field of view
- 1920x1080 display, 15mK NETD
- Value 640 clip-on, no rangefinder
- Mounts in front of your day scope, holds zero
- Turns any day rifle into a night rifle
What's in the Box
Ships as a complete Guide kit: the thermal clip-on, rechargeable battery, charger and USB-C cable, adapter/mount hardware, carry case, and manual. Mount rings or adapters for your specific scope may be sold separately. Call us at 252-431-6001 to confirm the right adapter for your day scope before you order.
Common Questions
Do I have to re-zero my rifle?
No. A clip-on mounts in front of your day scope at true 1x and holds your existing zero, so your point of impact does not change. Clip it on and hunt.
Does it work in the daytime?
Thermal sees heat, not light, so it works day or night. Clip-ons are run mostly after dark, but the sensor reads heat in daylight too.
Will it fit my scope?
Clip-ons mount to the objective bell or a rail adapter. Fit depends on your scope's objective diameter, so call us at 252-431-6001 and we will confirm the right adapter before you order.
Can I use it as a handheld scanner or a rifle scope by itself?
No. A clip-on is built to pair in front of a day scope, not to be used alone. For a standalone unit look at a Guide thermal scope or monocular.
Guide vs Pulsar or ATN, how do they stack up?
Guide builds the same 12-micron sensors found in units costing far more, which is why hunters pick them for the value. Call us and we will compare honestly.
Not sure which Guide clip-on fits your setup? Carolina Sportsman Outfitters has been outfitting hunters since 2015. Call us at 252-431-6001 and we will match the right Guide clip-on to your day scope and how you hunt.
Backed by the Guide USA warranty and CSO's expert product support. Financing available at checkout, no credit needed. Military and First Responders are encouraged to use their credentials in the cart before checkout.
