Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Enjoy free shipping during the holidays! Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC and to all U.S. Military APO/FPO/DPO addresses.

Enjoy Our Extended FREE RETURNS

We want to ensure that making a return is as easy as possible! With our Hassle-Free, Extended Holiday Returns, eligible orders placed from November 12, 2025 on will benefit from an extended return deadline (January 13, 2026 or 30 days after receipt of your order - whichever is later). We'll even cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart
ITAR Product ITAR Product
Questions & Answers
Does it need to me collimated with the scope?

Yes, you will have the option to collimate this thermal clip-on to your day optic. The Sig thermal connects to your phone via the Sig app. First, zero your day optic. Second, clip on the thermal. Third, collimate by using the app to move the entire thermal picture. It's just like adjusting the left, right, up, down of the image on your TV. Once the entire image lines up with your day optic zero, you're set and ready for action.

by Bob from Texas, Verified Owner, February 20, 2025
Customer Reviews
Helpful Positive Review
Compact high quality, lifetime warranty. by Don, Verified Owner, August 26, 2025
I've had this for a few months and its been excellent. The quality feel is good a little on the heavy side. It weighs down front a little when combined with my 1x8 optic. But it picks up heat from a pretty long way. I can even make out a plane a cou...
Read More...
6/6 found this helpful
Helpful Negative Review
Problem from shot #1 by Bryan, September 22, 2025
I had high hopes. It was great to use for scanning in the dark. But I put it on a 300 BLK abd it shut off after shot #1. I turned it back on & the screen was all "fuzzy" absolutely no way to know what I was looking at. I took a second shot & it shut ...
Read More...
8/10 found this helpful
Read All 2 Reviews

Save on Featured Sig Sauer Products

Blazin' Deal
Prices have been cut drastically on this product as part of a special offer. These prices are so low that there's no double-dipping with coupons or any additional discounts, but you'll still get the best deal out there. This offer won't last long, so don't miss out!
Color: Black

Code: SD9-TCL-SDG-SOEC22100

MPN: SOEC22100

UPC: 798681702985

Blazin' Deal
List: $4,499.99Save 10%
$4,049.99

Buy Together and Save

Product Info for SIG SAUER ECHO CV25 Clip-On 1X25mm Thermal Rifle Scope

Equipped with BDX 2.0 and a Quick Disconnect mount, the ECHO CV25 Thermal Clip-On adapts to your situation at any given moment, with all the knowledge you need right in the palm of your hand.image

The ECHO Clip-On measures only 5 inches in size and features a parallax-free eyepiece, intuitively adjusting on the fly for quick detection and engagement. With the ability to easily swap and configure between firearms, you can eliminate variables and meticulously dial in your shot without losing time.

Specifications for SIG SAUER ECHO CV25 Clip-On 1X25mm Thermal Rifle Scope:

Manufacturer: SIG SAUER
Color: Black
Magnification: 1 - 8 x
Objective Lens Diameter: 25 mm

Compact at only 5in with a QD mount Eyepiece optimized for parallax-free clip-on application, and can be used as a thermal sight LWIR 640x512 VGA 12um 50Hz thermal core with ?20mK sensitivity Record still photos and video with audio Configurable via the BDX App including live video streaming Rechargeable and removeable 18650 lithium-ion battery with 9-hour runtime on a single charge IP67 Waterproof rating, 25mm Objective, 17 degrees FOV, 1024x768 AMOLED microdisplay SIG SAUER Infinite Guarantee unlimited lifetime warranty

Package Contents:

  • SIG SAUER ECHO CV25 Clip-On 1X25mm Thermal Rifle Scope

SIG SAUER ECHO CV25 Clip-On 1X25mm Thermal Rifle Scope Orderable Models

List of Orderable Models

  • SIG SAUER ECHO CV25 Clip-On 1X25mm Thermal Rifle Scope, Black, SOEC22100 , MPN: SOEC22100 , UPC: 798681702985 , Code: SD9-TCL-SDG-SOEC22100

SIG SAUER ECHO CV25 Clip-On 1X25mm Thermal Rifle Scope Unavailable & Discontinued Models

List of Unorderable Models

  • DEMO, SIG SAUER ECHO CV25 Clip-On 1X25mm Thermal Rifle Scope, Black, SOEC22100 , MPN: SOEC22100-DEMO , Code: SD9-TCL-SDG-SOEC22100-DEMO
Compare (0)