The Trijicon ACOG 3x24 Rifle Scope Crosshair .223 55gr Dual-Illuminated Red Reticle (SKU TA50-C-400351) is a compact fixed 3x ACOG with a 24 mm objective and a red crosshair carrying .223/55gr bullet drop marks, lit by fibre optics in daylight and a tritium lamp after dark with no battery of any kind.
How It Compares
The 3x24 is one of the shortest ACOGs at 4.9 in, and it pays for that with the shortest eye relief in the range — 1.4 in, so it wants mounting well forward of a service stock. The same optic with a green lamp is the ACOG 3x24 Crosshair .223 Green; for a different cartridge the ACOG 3x24 Crosshair 7.62x39 Red is cut for 123gr, and the red horseshoe dot replaces the crosshair with a horseshoe for faster close work. Browse all rifle scopes, the Trijicon ACOG rifle scopes range or the full Trijicon optics range.
Ideal For
- Short carbines and PDW-length builds where every inch of rail matters
- Shooters who want battery-free reliability with nothing to switch on
- Rifles chambered in .223 Remington or 5.56 NATO running a 55gr load
Key Features
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Reticle: Dual illuminated red crosshair
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Illumination: Dual illuminated: fibre optics (day) + tritium (night); battery-free
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Calibre Calibration: .223 / 55gr BDC
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Mount: Low Height Trijicon Q-LOC quick-release Picatinny mount
Technical Specifications
| Magnification / Objective |
3x fixed |
| Objective |
24 mm |
| Reticle |
Dual illuminated red crosshair |
| Calibre Calibration |
.223 / 55gr BDC |
| Illumination |
Dual illuminated: fibre optics (day) + tritium (night); battery-free |
| Adjustment Range |
0.5 MOA per click |
| Eye Relief |
1.4 in (36 mm) - very short, the shortest of the compact ACOGs |
| Exit Pupil |
0.32 in (8.1 mm) |
| Field of View |
25.6 ft at 100 yards (8.5 m at 100 m) |
| Length |
4.9 in (124 mm); L×W×H 4.9 × 2.2 × 2.3 in (124 × 56 × 58 mm) |
| Weight |
7.9 oz (224 g) |
| Housing |
Forged 7075-T6 aircraft-grade aluminium, matte black |
| Mount |
Trijicon Q-LOC Technology quick-release Picatinny mount (Low Height Q-LOC) |
| Water Resistance |
Waterproof, dry-nitrogen filled |
| What's Included |
ACOG, Q-LOC mount, Compact ACOG Scopecoat (TA62), LensPen (TA56), Trijicon logo sticker (PR15) |
| SKU / MPN / UPC |
TA50-C-400351 / TA50-C-400351 / 719307314108 |
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 fibre optics in daylight and tritium in the dark. There is nothing to switch on and nothing to run flat.
What calibre is the reticle calibrated for?
.223 Remington with a 55gr bullet. The marks below the crosshair are the drop holds for that load.
How much eye relief does it have?
1.4 in (36 mm), which is the shortest of the compact ACOGs. Mount it well forward and check your head position before you zero.
Does it come with a mount?
Yes — a Low Height Trijicon Q-LOC Technology quick-release Picatinny mount.
Can I shoot with both eyes open?
Yes — the ACOG is designed around the Bindon Aiming Concept for both-eyes-open shooting at speed.
Is this a genuine Trijicon product?
Yes — factory-new, genuine Trijicon.
