The Trijicon ACOG 6x48 Rifle Scope M240 Ballistic Horseshoe/Dot BAC Green Reticle (SKU TA648MGO-M240) is the largest ACOG Trijicon build: fixed 6x magnification, a 48 mm objective, and a green horseshoe/dot reticle etched with the M240 ballistic drop out to 1,200 m, lit by fibre optics and tritium with no battery.
How It Compares
This is a crew-served-weapon optic rather than a carbine sight — 6x fixed, 44.3 oz (1,256 g), and a reticle cut for the 7.62 NATO M80 trajectory from an M240 out to 1,200 m. It also carries an integrated M1913 Picatinny top rail, so a reflex sight can go above it for close work. The .308/7.62 versions of the 6x48 use different reticles: the red chevron BDC, the red horseshoe/dot BDC, and the factory 6x48 with an RMR fitted. See the whole range in Trijicon ACOG rifle scopes or the full Trijicon optics range.
Ideal For
- Belt-fed and heavy-barrel rifles in 7.62 NATO where the M240 drop curve applies
- Long-range battery-free shooting with a fixed 6x and a 48 mm objective
- Set-ups that need a reflex sight piggybacked on the integrated top rail
Key Features
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Reticle: Green Horseshoe/Dot ballistic reticle (dual-illuminated)
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Illumination: Dual illuminated: fibre optics (day) + tritium (night); battery-free
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Calibre Calibration: M240 (7.62 NATO M80) BDC out to 1,200 m
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Mount: TA75 Picatinny rail adapter, with an integrated M1913 Picatinny top rail
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Warranty: Trijicon Limited Lifetime Warranty
Technical Specifications
| Magnification / Objective |
6x fixed |
| Objective |
48 mm |
| Reticle |
Green Horseshoe/Dot ballistic reticle (dual-illuminated) |
| Calibre Calibration |
M240 (7.62 NATO M80) BDC out to 1,200 m |
| Illumination |
Dual illuminated: fibre optics (day) + tritium (night); battery-free |
| Adjustment Range |
4 clicks per inch at 100 yards (approx. 0.25 MOA per click) |
| Eye Relief |
2.7 in (69 mm) |
| Exit Pupil |
0.32 in (8.1 mm) |
| Field of View |
17 ft at 100 yards (5.7 m at 100 m); 3.3° |
| Length |
10.5 in (267 mm); L×W×H 10.5 × 3.2 × 3.5 in (267 × 81 × 89 mm) |
| Weight |
44.3 oz (1,256 g) |
| Housing |
Forged aluminium, matte black |
| Mount |
TA75 Picatinny rail adapter; integrated M1913 Picatinny top rail for RX30/RX34 reflex or other accessories |
| Water Resistance |
Waterproof to 66 ft (20 m), dry-nitrogen filled |
| What's Included |
ACOG; Picatinny rail adapter (TA75); brown soft case pouch; eyepiece flip cap; objective flip cap with killFlash ARD (TA97); lenspen (TA56); lanyard assembly (TA107); logo sticker (PR15) |
| SKU / MPN / UPC |
TA648MGO-M240 / TA648MGO-M240 / 719307304505 |
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 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?
M240 (7.62 NATO M80), with bullet drop compensating stadia out to 1,200 m.
Does it come with a mount?
Yes — the TA75 Picatinny rail adapter, and the body carries an integrated M1913 Picatinny top rail for an RX30/RX34 reflex sight or other accessories.
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.
