When your mission window opens and every second counts, a dependable fixed-power optic keeps the chaos simple: find the target, hold, press. A true fighting scope should be clear, rugged, and fast—no batteries to babysit, no drama under recoil, and no doubt at distance.
TRIJICON ACOG TA31H steps onto that line with the same calm confidence you want from your carbine.
Built for hard use and clean hits
There’s a reason Trijicon optics have ridden with professionals for decades. This model’s single-piece aluminum body is purpose-built to shrug off impacts and weather while keeping zero. The glass is crystal clear with a wide field of view, so you track what matters without tunnel vision. In a world of gadgets, simplicity under pressure wins. This ACOG lives there.
4×32 clarity that makes distance feel close
The 4×32 setup pairs practical magnification with speed. At 4x, target identification improves without losing awareness of the environment around the shot. You’re not trying to win a benchrest match; you’re trying to make a confident decision quickly. The optical quality here lets you read wind indicators, see splash, and call corrections without fighting haze or glare.
Self-illuminated reticle: daylight bright, night ready
No batteries, no switches. The reticle uses fiber optics for daylight intensity and tritium for low light. That means aiming reference when the sun is up, down, or hiding behind the weather. The H reticle’s red horseshoe and center dot are fast to acquire on close targets and precise enough to stack shots at range. It’s a smart balance—drive the dot for speed, settle the stadia for precision.
Real BDC, real results: 5.56 NATO to 800 meters
The ranging reticle is calibrated for 5.56x45mm NATO on flat-top rifles out to 800 meters. With proper zero, the holds map cleanly to common 55–62 grain duty loads, keeping your brain free to focus on wind and movement. At intermediate distances—300, 400, 500—the stadia lines give you reliable hits without dialing or guessing. Push farther and you still have reference points to work with while observing splash and adjusting.
For patrol rifles, training lanes, and field matches where time is tight, a well-executed BDC is worth its weight. This is that BDC—legible, predictable, and quick under stress.
Mounting is fast and repeatable
Everything you need is in the box. The included TA51 Picatinny mount attaches to a standard rail in minutes. Hand-tighten, then a quarter-turn of adjustment locks it in. No exotic tools, no mystery torque. If you maintain multiple rifles or swap uppers, the process stays straightforward and repeatable.
Set your zero and confirm
Zero the optic to your preferred distance—many shooters favor 100 meters for clean BDC alignment—and confirm hits across the stadia. With the clarity of the glass and the red horseshoe/dot reticle, calling corrections is smooth. Once dialed, the ACOG holds zero through transport, training, and the occasional hard knock. That’s the whole point.
Rugged reliability, field manners
From the first daylight run to the dusk relay, the illumination system transitions without drama. The etched reticle remains visible even if lighting is harsh, and the housing’s single-piece construction resists the kind of bumps that sideline lesser optics. Whether you’re running barricades, working prone on steel, or carrying long through the woods, this optic stays out of your way and helps you make clean choices.
Who will get the most out of it
If you’re running a 5.56 NATO flat-top rifle and need a fighting optic that blends speed with dependable holds, this is your lane. Law enforcement carbine programs, prepared citizens, and competitors who prefer fixed power will all appreciate the balance. If batteries and buttons aren’t your thing—or you just want gear that doesn’t ask for attention—this ACOG makes a strong case.
Price, value, and what you’re paying for
At $1106.99, you’re investing in proven glass, a bombproof housing, a self-illuminated reticle system, and a trustworthy BDC to 800 meters. Cheaper optics may look similar from across the counter; they rarely feel the same when it matters. Reliability isn’t an accessory—it’s the foundation. That’s what you’re buying here.
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Setup tips from the range
Confirm eye position and stock weld
Mount for a natural head position behind the 4x glass. Dry practice your ready-up into a consistent cheek weld, then verify at the range through multiple firing positions—standing, kneeling, prone. Stability and repetition beat improvisation.
Zero process that respects your time
Warm up the barrel, shoot careful groups, and let the glass do the work. Make measured adjustments, paint your holds, then record final clicks and ammunition choice. The clearer the record card, the easier your next cold-bore shot.
Work the BDC with real data
Take your chosen 5.56 load and confirm each stadia line on steel or paper at distance. Note shifts for your environment—temperature, altitude, and wind. The reticle gives you a map; your practice writes the legend.
Specifications that matter in the real world
- Magnification/Objective: 4×32 for a clean balance of speed and detail
- Illumination: Fiber optic (day) and tritium (low light), no batteries
- Reticle: Red horseshoe and dot with BDC calibrated for 5.56 NATO
- Construction: Single-piece aluminum body for durability
- Mount: Includes TA51 Picatinny mount; quick setup with quarter-turn after hand-tightening
- Effective Range: Ranging reticle to 800 meters on 5.56 flat-top rifles
- Category: Rifle Scopes
If you need an optic that stays honest when conditions aren’t, this one earns its keep. It’s the kind of gear you forget about until it saves you time on a tough shot—and that’s a compliment.
If your rifle is your lifeline and simplicity under stress is the standard, the TRIJICON ACOG TA31H is a solid answer. Clear glass, a no-nonsense reticle, and a BDC tuned for 5.56 out to 800 meters—built tough and ready now.
People Also Ask
What makes this product stand out from competitors?
This product offers superior quality and innovative features that set it apart in the market. Its design focuses on both performance and reliability, making it a top choice for professionals and enthusiasts alike.
Is this product suitable for beginners?
Yes, this product is designed with user-friendly features that make it accessible to beginners while still offering advanced capabilities for experienced users.
What warranty or support is available?
The product comes with comprehensive warranty coverage and excellent customer support to ensure your satisfaction and peace of mind.
How does this compare to similar products in its price range?
This product offers exceptional value for its price point, providing features and quality that typically cost significantly more in comparable alternatives.
What maintenance is required?
Minimal maintenance is required thanks to the product’s durable construction and quality materials. Regular cleaning and occasional inspections will keep it performing optimally.
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