The Trijicon ACOG 5.5×50 is a fixed-power combat telescope with a chevron reticle calibrated as a bullet-drop compensator for .308 Winchester/7.62 NATO. It combines traditional precision marksmanship with fast, close-in aiming speed, and ships with the accessories Trijicon includes on every full-size ACOG.

Key Specifications

• Fixed 5.5x magnification with a 50mm objective lens.
• Reticle is the illuminated red chevron with a .308/7.62 BDC ranging pattern.
• Windage and elevation adjust in 5 clicks per inch at 100 yards.
• Parallax-free design is usable from 5 yards to infinity.
• Eye relief is rated at 2.20 in.
• Lenses carry a multi-coated finish for clarity and light transmission.
• Illumination is tritium- and fiber-optic-powered with no battery required.
• Includes a thumbscrew flattop adaptor, ACOG Scopecoat, LENSPEN, and adjuster-cap lanyard.
• Model designation is the Trijicon ACOG series, part number TA55A.

Frequently Asked Questions

What is the ACOG 5.5×50’s BDC calibrated for? The chevron reticle is calibrated as a bullet-drop compensator for .308 Winchester/7.62 NATO loads.

Does it come with a mount? Yes, it includes a thumbscrew flattop adaptor along with a Scopecoat, lens pen, and adjuster-cap lanyard.

Is the reticle illumination battery powered? No, illumination comes from tritium at night and fiber optics in daylight, so there is no battery to maintain.

Buy the Trijicon ACOG 5.5×50 .308 BDC

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