Trijicon TA31A ACOG 4×32 Illuminated Red Triangle

The Trijicon ACOG TA31A is an internally-adjustable, compact telescopic sight featuring Tritium-illuminated reticle patterns for low-light and night use. It blends precise distance marksmanship with close-in aiming speed and is designed for use with the M16 family. The TA31A’s mechanical and optical design emphasizes reliable, battery-free illumination and durable performance in varied conditions. The package includes a carry handle screw and washer kit, a 4×32 Scopecoat, LENSPEN, lanyard assembly for adjuster caps, Trijicon logo sticker, ACOG manual and warranty card.

Key Specifications

• The magnification is 4x.
• The objective lens measures 32mm.
• The overall length is 7.30″.
• The field of view is 36.80 ft @ 100 yds.
• The eye relief is 1.50″.
• The coating type is Waterproof, Fogproof, Shockproof.
• Adjustment increments are 2 Clicks per Inch @ 100 yds.
• The optics are Multi-Coated.
• The weight is 16.20 oz.
• The reticle is an Illuminated Red Triangle Post.

Purpose-built for shooters who value dependable, battery-free illumination and compact, rugged optics, the TA31A ACOG delivers a proven balance of precision and close-quarters speed. Its robust construction and clear, illuminated reticle make it well suited for range use, training, and operational environments where consistent performance in varied lighting is required.