Overview
The ACOG needs no introduction—its bombproof construction and time-tested reliability have solidified it as a staple within the industry. The 3.5x35 model offers significantly increased eye relief over the more common 4x32 at the cost of some magnification, a little FOV, and a larger footprint. We find these to be good trade-offs for those who don't like the tight eye box of the 4x32 model but still want that ACOG reliability.
This is the TA11 model, which is powered by Fiber Optics and Tritium. It provides battery-free illumination that can last well over a decade. Unlike the LED model (TA110), the TA11 only features a rear mounting boss, slightly limiting your top dot capabilities, so there are trade-offs to the battery-free system. You can read more about that in the Top Mount Compatibility section below.
What's Included
- 1x Trijicon ACOG 3.5x35 Riflescope
- 1x Thumbscrew Flattop Adapter
- 1x LensPen
- 1x Owners Manual
- 1x Warranty Card
We include an 8.5" x 11" rifle zero target with every rifle optic. We recommend a 100-meter zero for the ACOG on most 5.56 rifles.
How To Shoot Part 2: Zeroing – Video – T.REX ARMS
Specs
FEATURES
- Longer eye relief than standard 4x32 models allows for a less strict eyebox and more flexibility with mounting location.
- High-quality glass and multi-coated lenses maximize light-gathering capabilities and a clear field of view with zero distortion
- Able to withstand recoil from a .22LR to a .50BMG and everything in between
- Performs in extreme cold and heat with dry-nitrogen filled housing that mitigates fogging
- Passes U.S. Military drop test requirements
- Minimal moving parts, creating a nearly indestructible sighting system
- Exceptional waterproofing that exceeds military standards
- Forged from 7075-T6 aircraft aluminum
- Warranty: Covered by Trijicon's manufacturer warranty. Warranty service is provided by Trijicon.
Made in the USA.
View the Horseshoe Reticle HERE.
Technical Specifications
| Dimensions (L x W x H) | 8 in x 2.1 in x 2.9 in (203.2mm x 53.34mm x 73.66mm) |
| Weight (with mount) | 17.6 oz. (498.95g) |
| Magnification | 3.5x |
| Objective Size | 35mm |
| Reticle Color | Red |
| Bullet Drop Compensating (BDC) | Yes |
| Caliber | .223 / 5.56 |
| Bindon Aiming Concept™ (BAC) | Yes |
| Illumination Source | Fiber Optics & Tritium |
| Adjustment | 3 clicks per inch (@ 100 yds) |
| Eye Relief | 2.39 in. (60.71mm) |
| Exit Pupil | 0.39 in. (9.91mm) |
| Field of View (degrees) | 5.5° |
| Field of View (feet) | 28.9 ft. @ 100 yds (9.63m @ 100m) |
| Mount | Flattop Thumbscrew Mount (TA51) |
| Housing Material | Forged Aluminum |
| Finish | Matte Black |
Top Mount Compatibility
| Aimpoint T2 / Micro | Aimpoint Acro | Trijicon RMR | |
| 3.5x35 LED (TA110) | Aimpoint Micro Middle Mount for ACOG Works on either mounting boss, but the rear mount is not an ideal placement for Acro-style optics. | Aimpoint Acro Middle Mount for ACOG Works on either mounting boss, but the rear mount is not an ideal placement for Acro-style optics | RMR Rear Mount for ACOG Works on either mounting boss. |
| 3.5x35 (TA11) | Aimpoint Micro Middle Mount for ACOG Rear only, not ideal placement for T-2 style optics. | Aimpoint Acro Middle Mount for ACOG Rear only, not an ideal placement for Acro-style optics. | RMR Rear Mount for ACOG |
| 4×32 LED (TA02) | Aimpoint Micro Front Mount for ACOG | Aimpoint Acro Front Mount for ACOG | RMR Front Mount for ACOG |
| 4×32 (TA31F) | Not Recommended | Not Recommended | RMR Rear Mount for ACOG |
30 Day Return Policy
Easy returns and exchanges.
Learn more →Shipping Restrictions
- Cannot be shipped outside the US.
- Cannot be shipped to: AA, AE, AP, AS, FM, GU, MH, MP, PR, PW, VI.



