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Trijicon ACOG 3.5x35 5.56 MRAD Red Chevron Rifle Scope TA51 Mount TA11 C 100806 UPC 719307316508
Product Description
The Trijicon® ACOG® 3.5x35mm Dual-Illuminated Rifle Scope (SKU: TA11-C-100806 / UPC: 719307316508) combines legendary combat-proven ruggedness with an extended 2.39-inch eye relief and a precision 5.56 / .223 Red Chevron MRAD reticle. Engineered for mid-range precision and rapid close-quarters engagement via the Bindon Aiming Concept® (BAC), this 3.5x35 fixed-power optic comes factory-configured with the TA51 Flattop Picatinny Thumbscrew Mount for immediate installation onto MIL-STD-1913 flattop receivers.
Forged from single-piece 7075-T6 aircraft-grade aluminum and finished in a non-reflective MIL-A-8625 Type III Class 2 hardcoat anodization, the TA11 chassis is virtually indestructible under severe recoil, impact, and environmental extremes. Its multi-coated optical glass delivers exceptional edge-to-edge clarity and light transmission through a generous 10.0 mm exit pupil, while nitrogen purging guarantees 100% waterproof and fogproof reliability from arctic cold to desert heat.
Operating completely battery-free, the ACOG utilizes Trijicon’s signature dual-illumination system—automatically balancing reticle brightness via a daylight fiber-optic collector tube and transitioning seamlessly to a self-luminous Tritium phosphor lamp in total darkness. The 5.56 / .223 MRAD Red Chevron reticle provides an infinitely sharp aiming tip for 100-meter precision alongside calibrated MRAD subtensions and 0.2 MRAD per click turret adjustments for rapid windage and elevation corrections without relying on fixed ammunition assumptions.
*Armorer Bench Notes & Real-World Staging Guidance:*
Fitment Matrix: Direct-mounts via the included TA51 Picatinny Mount to any MIL-STD-1913 flattop receiver (AR-15, M4, M16A4, FN SCAR 16S, IWI Tavor, Steyr AUG). CRITICAL WARNING: Will NOT fit narrow Weaver-spec rails. Unlike the short-eye-relief 4x32 TA31 (1.5" eye relief), the TA11 provides a forgiving 2.39" eye relief, allowing comfortable head placement while leaving ample rail space behind the optic for backup iron sights (BUIS). Do NOT over-torque the TA51 thumbscrews with pliers—hand-tighten plus 1/4 turn with a flathead screwdriver or coin (approx. 35–45 in-lbs) and witness-mark the knobs.
- Ensure the host rifle is completely clear, magazine removed, and bolt carrier group locked back with the chamber visually and physically verified empty.
- Degrease the upper receiver Picatinny rail slots and the TA51 mount recoil cross-bolts with 99% isopropyl alcohol.
- Position the TA11-C-100806 along the top rail to achieve a full, shadow-free sight picture at your natural cheek weld (~2.39" eye relief), pressing the mount forward against the front faces of the Picatinny rail slots to eliminate recoil shift.
- Tighten both TA51 thumbscrews evenly by hand, then apply an additional 1/4 turn using a wide flat-blade screwdriver or coin (35–45 in-lbs) and apply witness marks across the knobs and mount body.
- Confirm 100-meter zero using the chevron apex (0.2 MRAD per click) and allow the fiber-optic collector full exposure to ambient light during staging.
Key Features
- 5.56 / .223 Red Chevron MRAD Reticle: Crisp illuminated chevron tip enables pinpoint 100m zeroing paired with rapid MRAD ranging and holdover subtensions.
- Battery-Free Dual Illumination: Fiber-optic daylight collector automatically adjusts brightness to ambient light while Tritium provides continuous low-light illumination.
- Forgiving 2.39" Eye Relief & 10.0 mm Exit Pupil: Longest eye relief in the ACOG family delivers fast, comfortable headbox acquisition and clears rear backup iron sights effortlessly.
- Forged 7075-T6 Aluminum Housing: Single-piece aerospace aluminum construction with Type III hardcoat anodizing withstands extreme military shock and immersion.
- Bindon Aiming Concept® (BAC) Capable: Enables both-eyes-open rapid target tracking during close-range transitions while maintaining 3.5x magnification at distance.
- Includes TA51 Flattop Mount: Factory-installed MIL-STD-1913 Picatinny thumbscrew mount plus Lenspen, neoprene Scopecoat, and vinyl Trijicon sticker.
Product Specifications
- Brand: Trijicon®
- Model/Series: ACOG® 3.5x35mm Dual-Illuminated Rifle Scope
- MPN / SKU: TA11-C-100806 / TJTA11-C-100806
- UPC: 719307316508
- Magnification & Objective: 3.5x35mm Fixed Power
- Reticle & Illumination: Red Chevron 5.56 / .223 MRAD (Fiber Optic & Tritium)
- Adjustment Graduation & Travel: 0.2 MRAD per Click (10 MRAD Total Travel)
- Eye Relief & Exit Pupil: 2.39" (60.7 mm) Eye Relief / 10.0 mm Exit Pupil
- Field of View: 5.5° (28.9 ft @ 100 yds / 9.63 m @ 100 m)
- Overall Length: 8.00" (203.2 mm)
- Housing Material & Finish: Forged 7075-T6 Aluminum / Matte Black Type III Hardcoat Anodized
- Mount Included: TA51 MIL-STD-1913 Picatinny Thumbscrew Mount
- Platform Compatibility: MIL-STD-1913 Picatinny Flattop Receivers (AR-15 / M4 / 5.56 NATO Platforms)
- Country of Origin: United States
