Trijicon ACOG TA31-D 4x32 Red Chevron with RMR
- Magnification Minimum: 4x
- Magnification Maximum: 4x
- Objective Lens Diameter: 32 mm
- Mounting Type: Picatinny Mount
Last refreshed Jun 22, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
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ASIN: B073Y3PHCBCategory: Rifle Scopes
More from this brandAll Trijicon rifle scopesOverview
A Trijicon ACOG 4x32 scope with a red chevron reticle for .223, built with an attached RMR reflex sight, model TA31-D-100549. Pairs a fixed 4x magnified optic with a co-witnessed red dot for close and mid-range shooting. A long-standing choice among AR platform shooters.
- 4x32 fixed magnification with red chevron reticle for .223
- Integrated RMR reflex sight for close-range backup aiming
- RMR battery reported to last over a year in storage
Who it's for
Suits AR platform shooters who want a rugged, fixed-power combat optic with an integrated red dot for close-range backup aiming. Buyers new to ACOGs should read up on what a genuine unit looks like given the recurring counterfeit concerns in the review section.
Pros and cons
- RMR battery reported to last over a year in storage
- Glass described as crystal clear by multiple buyers
- Counterfeit concerns are a recurring worry in this product category
- One buyer received a unit they considered poor quality
Specifications
| Brand | Trijicon |
|---|---|
| Dimensions & fit | |
| Objective Lens Diameter | 32 mm |
| Item Weight | 0.06 pounds |
| Construction & materials | |
| Material Type | Plastic |
| Color | Black |
| Compatibility & installation | |
| Mounting Type | Picatinny Mount |
| Compatible Devices | Handgun |
| Included components | |
| Unit Count | 1 |
| Included Components | Product |
| Warranty & support | |
| Warranty Description | 2 years |
| Other details | |
| Magnification Minimum | 4x |
| Magnification Maximum | 4x |
| Night vision | Yes |
| Sport Type | Hunting |
| Reticle Type | Chevron |
| Item Type Name | Holster |
| Field Of View | 7 Degrees |
Frequently asked questions
How long does the RMR battery last on this optic?
One reviewer reported over a year of battery life while keeping the optic stored most of the time.