The Trijicon ACOG 4x32 Rifle Scope Crosshair .223 Amber Reticle Flat Dark Earth (SKU TA01-D-100319) is a fixed 4x32 ACOG in a Flat Dark Earth finish, with an etched amber crosshair bullet drop compensating reticle for .223/5.56 and backup iron sights on the mount.
How It Compares
This is the Flat Dark Earth version of the tritium ACOG, on the TA01NSN-pattern reticle. In matte black, the same reticle is the Trijicon ACOG 4x32 rifle scope, .223 amber crosshair, and for .308/7.62 there is the .308 amber crosshair. Illumination on this model is tritium alone with no fibre optic light pipe, so the reticle reads black in daylight and glows amber once the light drops. See the whole range in Trijicon ACOG rifle scopes, all rifle scopes or the full Trijicon optics range.
Ideal For
- Service rifle and practical shooting in .223/5.56 on a rifle finished in FDE
- Shooters who want backup iron sights built into the mount
- Rifles that must work with nothing to switch on and no battery to carry
Key Features
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Reticle: Amber crosshair, .223/5.56 BDC, tritium only
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Illumination: Tritium only — no fibre optics, battery-free
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Magnification / Objective: 4x fixed, 32 mm objective
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Mount: Flattop thumbscrew mount (TA51-pattern) with backup iron sights
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Finish: Flat Dark Earth
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Warranty: Trijicon Limited Lifetime Warranty
Technical Specifications
| Magnification / Objective |
4x fixed |
| Objective |
32 mm |
| Reticle |
Amber crosshair, .223/5.56 BDC, tritium only |
| Calibre Calibration |
.223 / 5.56 NATO BDC (600 m, TA01NSN-pattern reticle) |
| Illumination |
Tritium only — no fibre optics |
| Adjustment Range |
2 clicks per inch at 100 yards (approx. 1/2 MOA per click) |
| Eye Relief |
1.5 in (38 mm) |
| Exit Pupil |
0.32 in (8.1 mm) |
| Field of View |
36.8 ft at 100 yards (12.3 m at 100 m); 7° |
| Length |
5.98 in (152 mm) |
| Weight |
15.6 oz (442 g) |
| Housing |
Forged aluminium; Flat Dark Earth (FDE) finish |
| Mount |
Flattop thumbscrew mount (TA51-pattern) + backup iron sights |
| Water Resistance |
Submersion depth 66 ft (20 m) |
| SKU / MPN / UPC |
TA01-D-100319 / TA01-D-100319 / 719307307339 |
Warranty
Trijicon back this with their Limited Lifetime Warranty: the optical system and metal structure are covered against defects in materials and workmanship for the lifetime of the original owner. The tritium lamp carries its own multi-year term from date of manufacture.
UK Delivery & Support
Delivery is a flat £5 by Royal Mail Tracked 24, UK addresses only, with no free-delivery threshold. Allow 7–10 business days from order to doorstep — most of that window is sourcing, and the Tracked 24 leg is the last day of it. Duties and import fees are prepaid, so there is nothing to pay on arrival. Questions about reticles, mounts or fit? Email info@xtremetactical.co.uk, or message us on WhatsApp or by text on +44 7940 435857 — messages only, we don't answer voice calls.
Frequently Asked Questions
Does it need batteries?
No — the reticle is lit by tritium alone, so there is nothing to switch on and nothing to run flat. This model has no fibre-optic light pipe: the reticle reads black against a bright background in daylight.
What calibre is the reticle calibrated for?
.223 / 5.56 NATO, on the TA01NSN-pattern reticle with bullet drop compensating stadia out to 600 m.
Does it come with a mount?
Yes — a flattop thumbscrew mount of the TA51 pattern, with backup iron sights.
Can I shoot with both eyes open?
Yes — the ACOG is designed around the Bindon Aiming Concept for both-eyes-open shooting at speed.
What warranty does it carry?
Trijicon's Limited Lifetime Warranty. The tritium lamp carries its own multi-year term from date of manufacture.
Is this a genuine Trijicon product?
Yes — factory-new, genuine Trijicon, covered by Trijicon's Limited Lifetime Warranty.
