The TA31-C-100550 pairs Trijicon’s combat-proven 4×32 ACOG with an RMR Type 2 red dot mounted on top, the same idea U.S. forces adopted for close encounters. Use the 4x ACOG for precise shots at distance, then tip your head and use the RMR for fast close-range work. The ACOG’s dual-illuminated red crosshair uses fiber optics and tritium, so it needs no battery, and its .223 BDC reticle compensates for bullet drop out to 600 meters. Bindon Aiming Concept lets you shoot with both eyes open.
Key features
- 4x magnification, 32mm objective
- Red crosshair .223 BDC reticle, fiber optic and tritium illumination, BDC to 600 m
- Trijicon RMR Type 2 with a 3.25 MOA red dot, automatic LED brightness
- Flattop thumbscrew mount (TA51) included
- Eye relief 1.5″; 36.8 ft field of view at 100 yds
- Forged aluminum, matte black; waterproof to 66 ft
- 5.98″ long, 2″ wide, 2.3″ tall; 17 oz (Trijicon spec)
Buying from PM Customs in Yukon
Your ACOG and RMR can ship directly to you, or choose local pickup in Yukon, OK by appointment (generally Mon–Sat, 8 AM–4 PM). Questions about fit or footprint? Call 405-265-8955.







