Trijicon ACOG 6×48 Red Chevron BMG Superb 50 Cal Scope

Description

This is the big one. The Trijicon ACOG 6×48 Red Chevron BMG is Trijicon TA648-50: a 6×48 prism with a red chevron reticle calibrated for .50 BMG, supplied on the TA75 mount. It is built around a cartridge that does things to optics that 5.56 never will, and almost every difference from a standard ACOG traces back to that.

Built Around the Recoil of a .50

Eye relief is the first and most important number. At 2.7 inches it is nearly twice what a 4×32 ACOG gives you, and that is not a luxury feature. A .50 BMG rifle moves rearward with enough authority that an optic sitting an inch and a half from your face is a genuine injury risk. Trijicon designed the Trijicon ACOG 6×48 Red Chevron BMG with the extra clearance so that a heavy recoiling rifle does not put the eyepiece into your eyebrow. It also makes the scope far more forgiving to get behind than the smaller ACOGs are.

The 48mm objective is the second change. Fifty calibre rifles get used at distances where light gathering matters, and a 48mm front lens with a 0.32 inch exit pupil at 6x gives you a usable image in poor light. Field of view is 17 feet at 100 yards across 3.3 degrees, which is narrow by ACOG standards and entirely appropriate for a rifle nobody is shooting at close range.

The reticle is a red chevron with a 50 BMG BDC reticle drawn below it. A chevron makes sense here: the apex is a fine aiming reference for deliberate long range shots, and the widening body gives your eye something to find when the rifle has just moved under you. Adjustments run four clicks per inch at 100 yards, finer than the two or three clicks per inch on the carbine models.

Trijicon ACOG 6×48 Red Chevron BMG Specifications

Illumination is the same dual illuminated reticle system Trijicon uses across the line. A fibre optic ribbon on top of the housing gathers ambient light and drives the reticle, scaling automatically with the conditions, and a tritium lamp takes over when there is nothing left to gather. No battery, no switch, nothing to fail at an inconvenient moment. On a rifle this expensive to feed, not having to think about the sight is worth something.

The Trijicon ACOG 6×48 Red Chevron BMG ships on the TA75 mount rather than the TA51 flat top adapter used across the carbine range. The TA75 is built for the heavier rings and rail heights found on fifty calibre rifles. The housing is forged aluminium in matte black and the whole assembly is rated to the same submersion depth as the rest of the ACOG family.

• Trijicon model TA648-50, ACOG 6×48 BAC
• Magnification and objective: fixed 6x48mm
• Reticle: red chevron, 50 BMG BDC reticle
• Caliber calibration: .50 BMG
• Illumination: fiber optics and tritium, no batteries
• Bindon Aiming Concept: yes
• Eye relief: 2.7 in. Exit pupil: 0.32 in
• Field of view: 17 ft at 100 yards, 3.3 degrees
• Adjustment: 4 clicks per inch at 100 yards
• Mount: TA75
• Housing: forged aluminium, matte black
• UPC 719307302273

Honest Notes on the Trijicon ACOG 6×48 Red Chevron BMG

Check your mounting situation before you order. The TA75 is a specific mount for specific rifles, and fifty calibre rifles vary enormously in rail height and receiver layout. A Barrett M107, an AR pattern fifty and a bolt action single shot are three different mounting problems. Confirm the mount works with your rifle rather than assuming, because returning a scope this size is a nuisance.

Six power is deliberately modest for a fifty, and some buyers find that frustrating. Plenty of people shooting .50 BMG at a thousand yards and beyond want twenty power and a mil grid, not a fixed six with a chevron. What the Trijicon ACOG 6×48 Red Chevron BMG offers instead is an aiming system that survives the recoil impulse indefinitely, works with no batteries, and lets you shoot with both eyes open. If your use case is precise long range group shooting, a high magnification variable is the better tool and nobody at Trijicon would argue otherwise.

Confirm the holdovers with your ammunition. Fifty calibre loads vary hugely in bullet weight and velocity, from surplus ball to match grade solids, and a BDC reticle drawn for one of them will be meaningfully off for another. Shoot the stadia on paper at the ranges you care about and record the results.

Two smaller points. Reticle brightness is automatic and cannot be dialled by hand. And the tritium loses about half its brightness every twelve years, which is why the lamps carry a twelve year warranty rather than a lifetime one. On a scope this expensive it is worth knowing that one component is a consumable.

Every Trijicon ACOG 6×48 Red Chevron BMG we list is current Trijicon production in the factory carton with the TA75 mount, lens covers and warranty paperwork. MAG5 Firearms is a family run FFL dealer in Collegeville, Pennsylvania, and optics ship direct to your door with no transfer needed.

See more rifle optics at MAG5 Firearms, or check the Trijicon TA648-50 specification sheet from the manufacturer.