Trijicon TA91 ACOG 4x32 RCO Modular Anti-Reflection Device (ARD) - AC11011 - UPC 719307302594
Product Description
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 4x32 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 4x32 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 4x32 ACOG sight picture.
*Armorer Bench Notes & Real-World Staging Guidance:
Fitment Matrix: Fits all Trijicon 4x32 ACOG models (including TA01, TA31, TA31RCO, TA31F, and M4/M16 Army/USMC RCO variants). Note: Will NOT fit 1.5x16, 2x20, 3x30, 3.5x35, or 5.5x50 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 4x32 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.
- 4x32 ACOG Compatibility: Purpose-built to match the objective housing geometry of 4x32 ACOG and RCO optical sights.
- Rugged Polymer Hull: Engineered from chemical- and heat-resistant composite material with a non-glare tactical matte black finish.
Product Specifications
- Brand: Trijicon
- Model: TA91 ACOG 4x32 RCO Modular ARD (KillFlash®)
- MPN: AC11011 / TA91
- UPC: 719307302594
- Optic Compatibility: Trijicon 4x32 ACOG / RCO Series
- Material: Impact-Resistant Polymer & Rubber Lanyard
- Finish: Matte Black
- Mounting Method: Friction Fit w/ Lanyard Retention Strap
- Mass: ~1.1 oz (31.2 g)
