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T.REX Aimpoint Acro Middle Mount for ACOG


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What’s Included | Specs | Pictures | Related Info

Trijicon’s ACOG riflescope and Aimpoint’s Acro red dot are each high-quality optics on their own and become a winning pair when combined. Mounting an Acro atop an ACOG provides excellent aiming capabilities at a wide range of distances.

The T.REX Acro mount utilizes the mounting points on the ACOG that are intended for mounting Trijicon’s RMR red dot sight. The open emitter design of the RMR can limit its usability in bad weather. Aimpoint Acros, on the other hand, use an enclosed emitter and have better night vision capabilities, making them a great optic for replacing the typical RMR. 

This Middle Mount is recommended for use with 3.5×35 LED (TA110) models in the “middle” position. Attach the optic to the mount and screw the mount down to the top of the ACOG, zero, and you’re good to go. This mount is also compatible with other optics that utilize the Aimpoint Acro footprint.


One T.REX Aimpoint Acro Middle Mount for ACOG; two screws for mounting to ACOG; one hex wrench

This mount is NOT compatible with TA02 LED ACOG models. You’ll want the T.REX Aimpoint Acro Front Mount for that.

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  • Designed to fit the Trijicon ACOG
  • Compatible with other red dots that utilize the Aimpoint Acro footprint
  • Low profile, minimalist design
  • CNC machined from 7075-T651 aluminum to ensure strength
  • MIL-A-8625 Type III hard coat anodizing ensures durability
  • Acro clamp screw: Torque to 26 in/lbs
  • Mount screws: Torque to 15 in/lbs
  • Lifetime warranty

Made in the USA by Arisaka Defense.


Recommended for use with:

  • 3.5×35 LED (TA110) models in the “Middle” position.

Viable, but not ideal:

  • 3.5×35 (TA11) models
  • 5.5×50 (TA55) models

Not recommended:

  • 4×32 (TA01 and TA31) models are NOT recommended because the optic overhangs the eyepiece of the ACOG, limiting the field of view and obstructing the user from a consistent sight picture.


Weight1.1oz 32g

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Are T.REX ARMS Mounts Covered Under Warranty? – Help – T.REX ARMS

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