Trijicon ACOG 3.5x35mm Scope Calibrated for .223/5.56 with TA51 Flattop Adapter (SKU: TRTA11F) — Pack of 2
Log in to view prices
Trijicon ACOG 3.5×35 scope calibrated for .223/5.56, includes TA51 flattop mounting adapter and illuminated reticle with fiber optics & tritium; supplied as Package Qty: 2.
Guaranteed safe checkout

Description
Description
Product Overview
Trijicon ACOG 3.5×35 is listed under Optic > Scopes > Scopes, Sights, & Optics. Source attributes record TA51 Flattop Mounting Adapter and calibration for .223/5.56, plus illumination via fiber optics & tritium. The listing shows Package Qty: 2.
Why This Product
Verified details important to procurement include the calibrated ballistics reference (.223/5.56) that informs zeroing expectations and the TA51 flattop adapter which affects mounting method on flat-top receivers. The illumination method is recorded as fiber optics and tritium—relevant for low-light use considerations.
Key Verified Specifications
- Brand / Manufacturer: Trijicon (f002, f006, f007)
- Category: Scopes / Optics (f003, f004, f005)
- Model / Magnification: ACOG 3.5×35 (existing_copy full)
- Calibrated for: .223/5.56 (f010)
- Mounting adapter: TA51 Flattop Mounting Adapter (f009)
- Illumination: Fiber Optics & Tritium (f011)
- Package quantity: 2 (f008, f012)
- SKU: TRTA11F (f014)
Appropriate Use Cases
- Procurement for rifles chambered in .223/5.56 where a factory-calibrated optic simplifies initial zeroing and ballistics matching (f010).
- Purchasing for platforms with flattop receivers where the TA51 adapter is the specified mount option (f009).
- Orders requiring low-light-illuminated reticles due to the recorded fiber optics & tritium illumination (f011).
What Customers Should Know
- Package Qty = 2; confirm whether that reflects two complete optics or two units for multi-unit orders (f008, f012).
- Calibration for .223/5.56 is an attribute—verify that the optic’s calibrated drop chart and mounting height meet your application requirements (f010).
- TA51 Flattop Mounting Adapter is listed as the mounting method; verify compatibility with receiver rail geometry before ordering (f009).
- SKU TRTA11F should be used for order accuracy (f014).
Specifications
- Short Stroke Gas Piston Gas System (Rifle Length)
- 18.6″ Barrel Length ( Mid-Weight style, non-fluted)
- 1:8 Twist Rate Rifling

