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Description
A 3.5x35 ACOG machine gun optic designed specifically for the M249 weapon system, for support gunners who need a rugged magnified sight with a tritium and fibre-optic reticle.
This 3.5x35 ACOG is a Machine Gun Optic (MGO) designed specifically for the M249 weapon system. Its Bullet Drop Compensator gives enhanced target identification and increased hit probability out to 1000 metres.
The green horseshoe/dot reticle uses dual illumination from fibre optics and tritium, so the aiming point is illuminated without the use of batteries. The sight is supplied with a flattop thumbscrew mount (TA51) and an objective flip cap with killFlash anti-reflection device.
Key features
- Dual illumination — Self-luminous tritium illuminates the aiming point in total darkness, while the fibre optic self-adjusts reticle brightness in daylight to match ambient light conditions.
- Bullet drop compensation — The bullet drop compensating reticle supports enhanced target identification and increased hit probability out to 1000 metres.
- Both eyes open — The Bindon Aiming Concept (BAC) allows shooting with both eyes open for improved situational awareness while engaging targets.
- Threaded eyepiece bosses — Threaded bosses on the eyepiece housing allow the user to add a Trijicon RMR sight for close combat situations or other target designators.
- Fixed-power housing — The fixed-power design has minimal moving parts, and the forged aluminium housing is shock-resistant and passes U.S. Military drop test requirements.
- Waterproof and fog-free — The housing is waterproof and filled with dry nitrogen to mitigate fogging in extreme cold and heat.
- Multi-coated optics — Multi-coated lenses maximise light-gathering capabilities and give a clear field of view.
Typical applications
- Magnified day and night sighting on M249 light machine guns.
- Support-weapon roles that call for target identification and holds at extended range.
- Combined set-ups with a reflex sight on the eyepiece for close combat situations.
Technical specifications
| Length × width × height | 8.7 in x 2.1 in x 2.9 in (220.98mm x 53.34mm x 73.66mm) |
| Weight | 17.6 oz. (498.95g) |
| Magnification | 3.5x |
| Objective size | 35mm |
| Reticle pattern | Horseshoe Dot |
| Day reticle colour | Green |
| Night reticle colour | Green |
| Bullet drop compensation (BDC) | Yes |
| Bindon Aiming Concept (BAC) | Yes |
| Illumination source | Fiber Optics & Tritium |
| Power source | Fiber Optics & Tritium |
| Adjustment | .1 mils per click @100 yards |
| Eye relief | 2.39 in. (60.71mm) |
| Exit pupil | 0.39 in. (9.91mm) |
| Field of view (degrees) | 5.5° |
| Field of view (distance) | 28.9 ft. @ 100 yds. (9.63m @ 100m) |
| Mount | Flattop Thumbscrew Mount (TA51) |
| Housing material | Forged Aluminum |
| Finish | Matte Black |
In the box
- 1 × ACOG® 3.5x35 BAC Riflescope - M249 — Green Horseshoe/Dot Reticle, Thumbscrew Mount and ARD, Tritium / Fiber Optics Illuminated, Matte Black
- Thumbscrew Flattop Adapter (TA51)
- Brown Soft Case Pouch
- Eyepiece Flip Cap
- Objective Flip Cap with killFlash Anti-Reflection Device
- LENSPEN (TA56)
- Lanyard Assembly for Adjuster Caps (TA71E)
- ACOG Manual
- Warranty Card
Model information
| Brand | Trijicon |
| Model | ACOG® 3.5x35 BAC Riflescope - M249 — Green Horseshoe/Dot Reticle, Thumbscrew Mount and ARD, Tritium / Fiber Optics Illuminated, Matte Black |
| MPN | TA11MGO-M249 |







