Model: TRS125
TRS-125 Red Dot Sight
3.8 out of 5 Customer Rating
Model: TRS125

TRS-125 Red Dot Sight


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The TRS-125 red dot sight builds on its predecessor with digital push-button control, user-selectable 12hr timer and over 15,000hrs of battery life. An IPX7 ingress rated monolithic main housing and durable low-profile mount with removable, skeletonized high-rise spacer put this sight at home on many small arms.

UPC: 029757007513
  • In Stock
3.8 out of 5 Customer Rating

Use It With

Model: AR731304
Model: 740001C


TRS-125 Reflex Sight

The new TRS-125 is a compact enclosed red dot with high and low mounts with modern features and battery life that shooters and hunters need.

The TRS-125 features an efficient and clear 3 MOA dot with 10 brightness settings that delivers up to 15,000 hours of battery life. The point source LED creates a clean beam that produces a strong day light-bright dot without wasting energy. 

Push-Button controls not only give you the option of 10 brightness settings, but also give you the ability to engage or disengage the 12-hour automatic shutoff should you want to use it for defensive purposes. When on, the onboard timer automatically turns the unit off after 12hrs of no buttons being pressed. When off, the optic stays on until you shut it off. The optic’s onboard logic makes it easy to determine what state the optic is in; 4 quick dot pulses to indicate the timer is active or 3 slow pulses to indicate off. 

The TRS-125 comes with a low profile Weaver-style mount and a high-rise spacer, is IPX7 waterproof, and comes with our lifetime Ironclad Warranty. 


6-36X56 Configuration

User-Selectable Auto-Shutoff

The TRS-125 has a user-selectable auto-off timer that can also be turned off for defensive applications. The onboard logic allows you to select whether or not to engage the auto-off timer. When engaged, the timer will automatically power down the optic after no buttons are pressed for 12 hours ensuring the sight is always at-the-ready regardless of what brightness setpoint is chosen.

G4P Precision Reticle

Slim, Rugged - Snag Free

The TRS-125's aircraft-grade aluminum body is a one-piece design machined from a single piece making it extremely rugged. We also designed it to be slim so it doesn't extend wider than a typical AR-15 or MSR. On top of that, the battery housing is integral/unitized with the main chassis for additional robustness and the battery cap is rounded for a nearly flush fit into the chassis - This all provides you with a snag-free optic that won't be getting hung up on things.

6-36X56 Configuration

Long Battery Life

Under the low-profile battery cover the TRS-125 is powered by 1 CR2032 battery and can deliver up to 15,000 hours of use from a battery, and we include a mar-free tool for when it's time for replacement.

G4P Precision Reticle

3 MOA Point-Source LED

The TRS-125 uses a point-source RCLED system for projecting the 3 MOA dot onto the glass. Older systems use a mask over an LED that acts like a small flood lamp. This wastes light/energy and adds parts. The TRS-125’s RCLED emits a collimated, crisp beam without the use of a mask– This delivers the brightest and sharpest dot possible while also being extremely efficient.

Multi-Position Throwhammer

Mount High or Low

The TRS-125 comes with both high and low Weaver mounting options. Simply use the riser block and provided screws to raise the height of your TRS-125, or leave it out for low. Since it's a Weaver pattern base it'll mount on both Weaver and Picatinny rails.

XRS3 Bold Turret Markings

IPX7 Waterproof

The TRS-125's robust construction is IPX7 ingress rated to keep moisture out even when fully submerged in 1m of water for 30min. It’s also nitrogen purged to mitigate internal fogging from environmental changes.

Multi-Position Throwhammer

Push-Button Controls

Cycle through the TRS-125's 10 brightness settings easily through the push-button controls. Simply hold the - button for 3 seconds to power down the optic, or push and hold both buttons to engage/disengage the auto-off feature.

XRS3 Bold Turret Markings

Perfect Magnifier Companion

Expand the TRS-125's usage with our 3X Magnifier to increase precision at longer distances.

  • EFFICIENT CLEAR 3 MOA DOT WITH 10 BRIGHTNESS SETTINGS - Point source LED creates a clean beam that produces a strong dot without wasting energy.
  • LONG LASTING BATTERY LIFE - With over 15,000 hours on the mid setting (Setting 5) you won’t need to change the battery any time soon. The side loading battery is easy to replace without removing the sight from the firearm retaining your zero.
  • USER-SELECTABLE 12-HR TIMER FOR REAL-WORLD APPLICATION. The user may prefer to leave the brightness setting set at or towards day-bright. If so, they can also choose to use the onboard timer to automatically turn the unit off after 12hrs of no buttons being pressed. The optic’s onboard logic makes it easy to determine what state the optic is in; 4 quick dot pulses to indicate the timer is active or 3 slow pulses to indicate off.
  • MOUNTS ON HANDGUNS, RIFLES AND SHOTGUNS - Works across firearms with common Weaver style or Picatinny accessory rails.
  • IPX7 DURABLE ALUMINUM CONSTRUCTION WITH REMOVABLE HIGH-RISE SPACER. Rugged aluminum housing ensures the glass and electronic internals are protected during field use and IPX7 rated sealing of the electronics allows the optic to be submerged 1 meter in water for 30 minutes without damage.
  • CONVENIENT LAYOUT AND DESIGN. Detented Windage/Elevation adjustment with 1 MOA per click. Side loading battery (CR2032) for easy replacement. Easy access push button design for brightness setting adjustment.
  • BACKED BY THE LIFETIME IRONCLAD WARRANTY. The TRS-125 is backed by Bushnell's Lifetime Ironclad warranty and are engineered and manufactured to withstand the rigors of the outdoors for the lifetime of the product. The materials and workmanship are covered for 5 years from date of purchase or manufacturing date. Fully transferable, no receipt required. Full details at
XRS# Profile Angle

TRS-125 Reflex Sight

Rugged. Versatile.



Item ID (SKU) TRS125
Collection TRS
Model Name TRS-125
Form Factor Closed Reflex
Adjustment Range (Total) 100+ MOA
Click Value 1 MOA
MOA Per Rev 28
Dot Color Red
Reticle 3 MOA Dot
Eye Relief Unlimited
Length 2.9 in.
Height Height w/o High-Rise Spacer-2.0 in.; With High-Rise Spacer 2.7 in.
Weight (g) 5.4 / 6.6 oz.
Lens Coating Fully Multi-Coated, EXO Barrier
Magnification 1x
Objective Size (in./mm) 22 mm 
Parallax 100 Yds.
Ingress Rating Yes, IPX7
Gas Purged Yes
Mount High-rise & low-profile Weaver rail mounts
Extended Battery Life Yes, up to 15,000 Hours
Battery CR2032
Battery Position Side-Loading
Brightness Settings 10
Controls Recessed Push - Button
Auto Shutoff Yes, 12hr with No Button Presses. User - Selectable (defeatable)