Trijicon TRTA31F ACOG 4×32 Scope .223/5.56 BAC Chevron Red with TA51 Adapter (SKU TRTA31F)
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Trijicon TRTA31F ACOG 4×32 scope calibrated for .223/5.56 with BAC chevron red reticle, TA51 flattop mounting adapter, fiber optics & tritium illumination; package quantity 9. SKU: TRTA31F.
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Description
Description
Product Overview
Trijicon TRTA31F is recorded under Scopes / Optics. Verified features include 4×32 magnification, calibration for .223/5.56, BAC chevron red reticle, TA51 Flattop Mounting Adapter, and illumination with fiber optics and tritium. Package quantity is 9. SKU: TRTA31F.
Why This Product
The TA51 flattop adapter and the scope’s calibration for .223/5.56 are key for buyers matching optics to AR-platform rifles chambered in those calibers. Built-in illumination with fiber optics and tritium supports reticle visibility without external power sources.
Key Verified Specifications
- Brand / Manufacturer: Trijicon (f002, f006, f007)
- Product class: Scopes; Scopes, Sights, & Optics; Optic (f004, f005, f003)
- Package quantity: 9 (f008, f012)
- Features: 4×32 magnification; Calibrated for .223/5.56 (f010); BAC Chevron Red reticle (existing_copy full); TA51 Flattop Mounting Adapter (f009); Illuminated with Fiber Optics & Tritium (f011)
- SKU: TRTA31F (f014)
Appropriate Use Cases
- Specifying optics for AR-style rifles chambered in .223/5.56 where a calibrated 4×32 ACOG with a BAC chevron reticle is required for procurement and inventory matching (f010).
- Ordering scopes intended to mount on flattop receivers using the TA51 adapter for straightforward mounting on AR-pattern rifles (f009).
What Customers Should Know
- Package quantity is 9 (f008); confirm packaging and whether adapters are included per unit as listed (f009).
- The record identifies key optical features but does not include eye relief, field of view, or weight — verify full optical specifications with the manufacturer prior to purchase.
Specifications
- Short Stroke Gas Piston Gas System (Rifle Length)
- 18.6″ Barrel Length ( Mid-Weight style, non-fluted)
- 1:8 Twist Rate Rifling

