User Ratings
No ratings yet
Be the first to review this product
Overview
- The SIG SAUER Echo RQ35 3.5-28x35mm 30mm Tube Thermal Rifle Scope is a robust thermal riflescope designed for outdoor use.
- Features a LWIR 12µm 50Hz thermal core with high sensitivity, 384x288 resolution, 50 Hz refresh, and 3.5-28x magnification with a 35 mm objective lens in a 30 mm tube.
- IPX67 water resistance, battery life up to 12 hours, and uses two 18650 batteries.
- Includes SIG SAUER Infinite Guarantee and BDX 2.0 support.
- Package contents include the scope, batteries, charger, USB-C cable, flip-back lens cover, removable eyepiece, ALPHA6 rings, lens cloth, and a thermal target.
Specifications
- Manufacturer: SIG SAUER
- Color: Multi
- Magnification: 3.5 - 28x
- Objective Lens Diameter: 35 mm
- Tube Diameter: 30 mm
- Refresh Rate: 50 Hz
- Resolution: 384x288 pixels
- Brightness Settings: 8
- Field of View, Angle: 7.6 degrees
- Battery Type: 18650
- Battery Life: 12 hours
- Water Resistance Level: IPX67
- Length: 375 mm (14.8 in)
- Width: 72 mm (2.8 in)
- Height: 3.5 in (89 mm)
- Weight: 900 g (31.7 oz)
- Battery Quantity: 2
- NETD: 20 mK
Features
- LWIR 12um 50Hz thermal core with ~20mK sensitivity
- Record still photos and video with audio
- BDX 2.0 enabled
- 12-hour runtime
- SIG SAUER Infinite Guarantee
Package Contents
- SIG SAUER Echo RV35 3.5-28x35mm 30mm Tube Thermal Rifle Scope
- (2) 18500 batteries
- Battery charger
- USB-C cable
- Flip back lens cover
- Removable Eyepiece
- 1.535" 30mm ALPHA6 rings
- Lens cloth
- Thermal target
Specifications
- Manufacturer:
- Sig Sauer
- Category:
- lpvo-scope
- Weight:
- 31.7 oz (1.98 lbs)
- Length:
- 14.8"
- UPC:
- 798681704132
- MPN:
- SOEC31200
- Required Component:
- No
Parts Cabinet
Track parts you own or plan to buy.
Where to Buy
Have one to sell?
Sponsored
MantisX
The smart way to train your AR build
Built your rifle — now train it. BlackBeardX installs in minutes and turns your AR into a full dry fire system with smart feedback on every pull.
Shop BlackBeardXPrice History
Current
$2,099.99
Lowest
$1,889.99
Highest
$2,099.99
Price Alert
Sign in to save a target price and receive an email when this component drops.
Sign In to Set AlertBundle Package
This is a bundled product that includes multiple components. The exact contents may vary - check the product description for more details.
• Complete assembly ready to use
• Multiple components included
• Value package pricing
Similar Products

Leupold Mark 5HD Rifle Scope - 3.6-18x44 (35mm) M1C3 FFP Illum. PR-1 MOA
Leupold
$2499.99

Monstrum Banshee 1-6x24mm LPVO Rifle Scope 30mm Tube Offset Mount Second Focal Plane
Monstrum
$129.99

Firefield Barrage 2.5-10x40 Rifle Scope with Red Laser Mil-Dot FF13065
Firefield
$119.97

Trijicon 400330 ACOG TA44 1.5x16 Scope Red Circle Dot Reticle
Trijicon
$1060.98

Sig Sauer Tango-MSR Compact 1-10x24 FFP Illum BDC-10 Riflescope with Mount
Sig Sauer
$629.99

Vortex Razor HD Gen II 1-6x24 Riflescip with VMR-2 ILL DOT MOA
Vortex
$1399.99

ZEISS Conquest V4 1-4x24 ZQAR Illum. Reticle #62 .5 MOA
Zeiss
$524.00

Vortex Optics Strike Eagle Rifle Scope 1-8x 24mm Illuminated EBR-8 MOA Reticle Matte Black
Vortex
$349.99
Builds Using This Part
No builds yet — be the first to use this part.
Related Guides
Guide
AK Optics Mounting Guide: Side Rail vs Dust Cover vs Handguard
Compare the main AK optics mounting approaches and choose the right setup for durability, repeatable zero, and practical shooting performance.
8 min read
Guide
AR-15 Optic Height Over Bore Explained (1.54, 1.93, 2.26)
An AR-15 optic mounting guide explaining height over bore, close-range offset, holdovers, and tradeoffs between absolute co-witness, lower-third, and taller mount heights.
7 min read
Guide
Optics 101: Red Dots, LPVOs, and Magnified Scopes
A high-level overview of the main optic categories, explaining tradeoffs between speed, versatility, and precision for AR-15 builds.
7 min read