Trijicon ACOG 4×32 RMR Green Crosshair Superb Combo

Description

Green is the daylight choice, and this is the green reticle version of the ACOG and RMR pairing. The Trijicon ACOG 4×32 RMR Green Crosshair is Trijicon TA31-C-100552: a 4×32 BAC prism with a green crosshair bullet drop reticle for .223, and a 3.25 MOA RMR Type 2 red dot mounted above it on the supplied bracket.

Two Independent Sights, One Rifle

The prism and the dot do not share anything. The ACOG is lit by fibre optics in daylight and a tritium lamp after dark, with no battery anywhere in it. The RMR has its own cell and its own zero. You use the magnified reticle by looking through the eyepiece as normal, and the dot by rolling the rifle about thirty degrees inboard until it drops into your line of sight. It feels odd for an afternoon and then becomes automatic.

That is the honest argument for a piggyback red dot over a low power variable. An LPVO at 1x is a compromise between a dot and a scope and is slightly worse than both at their own jobs. Here you get an uncompromised fixed 4x with an etched reticle that works with no power at all, plus an uncompromised parallax free dot. If either one breaks, the other is untouched and still zeroed.

Green reads brighter to the human eye than red at the same output, which makes the green crosshair BDC reticle the better choice for daylight shooting and open country. Red preserves night adaptation better. Trijicon builds this combination both ways for that reason, and the Trijicon ACOG 4×32 RMR Green Crosshair is the one to pick if most of your shooting happens in daylight.

Trijicon ACOG 4×32 RMR Green Crosshair Specifications

The crosshair is the precise option in the Trijicon reticle range, which is a sensible pairing with a dot on top. The crosshair handles distance work where a fine aiming point matters, and the RMR handles close work where speed matters, so neither reticle has to try to be both. Holdover stadia below the intersection are calibrated for 55 grain .223 and 5.56 from a 20 inch barrel.

The prism is the standard TA31 body: forged aluminium in matte black, 1.5 inches of eye relief, a 0.32 inch exit pupil, 36.8 feet of field of view at 100 yards and a 66 foot submersion rating. The Trijicon ACOG 4×32 RMR Green Crosshair ships with the TA51 flat top thumbscrew mount, the RMR and its bracket already fitted, a lens pen, adjuster cap lanyards and the warranty paperwork. Trijicon retail for the package is 2,640 dollars.

• Trijicon model TA31-C-100552, ACOG 4×32 BAC with RMR
• Magnification and objective: fixed 4x32mm
• Reticle: green crosshair BDC reticle, .223 calibrated
• ACOG illumination: fiber optics and tritium, no batteries
• Piggyback red dot: RMR Type 2, 3.25 MOA, mount included
• Bindon Aiming Concept: yes
• Eye relief: 1.5 in. Exit pupil: 0.32 in
• Field of view: 36.8 ft at 100 yards
• Mount: TA51 flat top thumbscrew adapter
• Housing: forged aluminium, matte black
• Submersion depth: 66 ft
• UPC 719307311800

Honest Notes on the Trijicon ACOG 4×32 RMR Green Crosshair

The price is the obvious objection and it deserves a straight answer. This is two Trijicon optics and a bracket, and at retail it costs more than most complete rifles. Bought separately the parts come to roughly the same money, so there is no premium for the packaging, but it is still a lot to spend on sights. If you only want close range capability, an offset mount and a budget micro dot gets you most of the benefit for a few hundred dollars.

Height over bore catches people out. The RMR sits about three and a half inches above the barrel, so at close distance your rounds land well below the dot. That is entirely predictable once you have shot it on paper at five, ten and twenty five yards, but it is more pronounced than on a rail mounted dot and it needs a deliberate session to learn.

Weight and bulk are the other cost. The prism with its mount is already a little over a pound, and the dot and bracket add more, all of it high and forward on the rifle. Guns configured this way tend to be duty rifles and range rifles rather than something carried all day.

Two more things that apply to every ACOG. Eye relief is 1.5 inches and the eye box is unforgiving, so the Trijicon ACOG 4×32 RMR Green Crosshair rewards a repeatable cheek weld and punishes a lazy one, and mount position on the rail matters more than on almost any other optic. And the prism reticle brightness is automatic rather than adjustable, which is usually a strength but reads dim if you are standing in a dark room looking out at bright daylight.

Every Trijicon ACOG 4×32 RMR Green Crosshair we list is current Trijicon production in the factory carton with both optics, the mounts, lens covers and warranty paperwork. MAG5 Firearms is a family run FFL dealer in Collegeville, Pennsylvania, and optics ship direct to your door with no transfer needed.

See more rifle optics at MAG5 Firearms, or check the Trijicon TA31-C-100552 specification sheet from the manufacturer.