Name: Trijicon TA91 ACOG 4x32 RCO Modular Anti-Reflection Device - AC11011
Brand: Trijicon
SKU: TA91 - AC11011
Price: 12.89 USD
Availability: InStock

Description

Trijicon TA91 ACOG 4×32 RCO Modular Anti-Reflection Device (ARD) – AC11011 – UPC 719307302594

The Trijicon TA91 Modular Anti-Reflection Device (ARD / KillFlash®) (AC11011) is a specialized optical accessory engineered to eliminate glint and objective lens reflections on Trijicon 4×32 ACOG® scopes and Rifle Combat Optics (RCO). Utilizing a high-efficiency geometric honeycomb grid pattern, the TA91 traps incoming ambient light and prevents forward-facing glass flash that can compromise an operator’s position in bright sunlight or hostile field environments.

Specifically designed to integrate seamlessly with 4×32 ACOG scope bodies, the TA91 ARD slips securely over the objective lens housing and secures in place using an integrated heavy-duty rubber retention band that loops around the optic frame. This modular design allows rapid installation and field removal without requiring tools or permanent scope modifications. In addition to signature reduction, the recessed honeycomb lattice acts as a protective shield for the multi-coated front objective lens, shielding expensive glass elements from sand, airborne debris, gravel, and branches during dynamic field maneuvers.

Manufactured from lightweight, impact-resistant composite polymers with a non-reflective matte black finish, the Trijicon TA91 ARD provides critical anti-reflection performance while maintaining full optical clarity, reticle illumination, and light transmission through your 4×32 ACOG sight picture.

*Armorer Bench Notes & Real-World Staging Guidance:

Fitment Matrix: Fits all Trijicon 4×32 ACOG models (including TA01, TA31, TA31RCO, TA31F, and M4/M16 Army/USMC RCO variants). Note: Will NOT fit 1.5×16, 2×20, 3×30, 3.5×35, or 5.5×50 ACOG models due to different objective bell dimensions.

Verify the firearm is completely clear, safe, and unloaded before installing or servicing optic accessories.

Slide the main collar of the TA91 ARD over the objective lens bell of the 4×32 ACOG until fully seated flush against the optic housing.

Stretch the flexible rubber retention lanyard back over the ACOG adjustment turret caps or housing body to lock the ARD tightly in position during recoil.

Key Features

Signature Mitigation: High-density honeycomb matrix neutralizes forward objective lens reflection and glint to maintain concealment.
Objective Lens Protection: Protects multi-coated front glass from direct impacts, debris, scratch hazards, and airborne grit.
Modular Slip-On Design: Features an integrated rubber retention strap for tool-free attachment and field removal.
4×32 ACOG Compatibility: Purpose-built to match the objective housing geometry of 4×32 ACOG and RCO optical sights.
Rugged Polymer Hull: Engineered from chemical- and heat-resistant composite material with a non-glare tactical matte black finish.