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« Last post by Jackalope on April 21, 2025, 12:57:26 PM »
The Sig Echo 3 is an interesting and useful piece of equipment. The Echo 3 was originally introduced over five years ago, and was priced for over $4000.00. Today, the same thermal device is available for around $1200.00, though I see it has been discontinued. I was able to purchase a new unit from Optics Planet, earlier this year. At this much lower price point, it?s a decent thermal scope for the money.
The Echo 3 comes with a quick mount for picatinny rails. The Echo 3 comes in two versions one with 2-12 magnification, and the other with 1-6 magnification which is what I purchased. The 1-6 magnification model is more appropriate for close quarter work, as the field of view is wider than the higher magnification unit. The 30 hz refresh rate has proven to be adequate for my usage, and I haven?t experienced any lag or bluriness due to movement.
I?ve found the images to be quite clear when compared to an AGM rattler thermal scope. It?s possible to make solid identification of objects up to the 100-150 yard range, and detect animals out to 300-400 yards. There are eight palettes available and multiple reticles too. I?ve found that the CR123 batteries last 6-7 hours, and I?ve switched to Surefire lithium rechargeable batteries as a cost saving alternative. The unit does have a sleep mode which helps considerably with battery life.
The Echo 3 is an effective scope for day or night usage. Unlike most traditional scopes, the Echo 3 doesn?t have an eyepiece, instead the operator is looking at a screen. There are pros and cons for this type of setup, light from the unit is emitted from the screen, though the brightness can be greatly reduced. It?s possible to view the screen from a wide range, and it can be used with both of your eyes open, allowing the operator to be more aware of their surroundings.
Most of the reflex sight settings are adjusted with a miniature joystick. The sight has recording capabilities too. It?s water resistant, with an IPX-4 rating, which means it can handle rain but not submersion.
Overall, it?s an effective sight that meets my needs in the thick undergrowth of middle Tennessee. The compact size makes it very useful for close quarters shooting. In my case, the Echo 3 is attached to a H&K MP-5K clone with a Lihium 9 suppressor, making it useful in eliminating homestead predators without disturbing the neighborhood.