Description
The Trijicon ACOG 4x32 Dual-Illum Riflescope Matte Black, Red Crosshair TA31-CH 100233 is a high-performance optic designed for tactical and competitive shooting. This riflescope features a fixed 4x magnification and a 32mm objective lens, providing a clear and bright sight picture. The dual-illumination system, utilizing both fiber optics and tritium, ensures the red crosshair reticle remains visible in all lighting conditions without the need for batteries.
Constructed with a durable matte black finish, the ACOG 4x32 is built to withstand harsh environments and rigorous use. The scope weighs just 9.9 ounces without the mount and measures 5.8 inches in length, making it a compact and lightweight option for shooters. The reticle is specifically designed for .223 caliber rifles, offering precise aiming points out to 800 meters.
The Trijicon ACOG 4x32 Dual-Illum Riflescope is known for its exceptional clarity and wide field of view, measuring 36.8 feet at 100 yards. With an exit pupil of 8.1 mm and an eye relief of 1.5 inches, this scope provides a comfortable and user-friendly experience. The counter-clockwise turret rotation allows for easy adjustments, with a click value of 2 clicks per inch at 100 yards.
Ideal For:
- Tactical shooting
- Competitive shooting
- Hunting
- Law enforcement
Features:
- DUAL ILLUMINATION: Fiber optics for daylight and tritium for low-light conditions, ensuring visibility without batteries.
- DURABLE CONSTRUCTION: Matte black finish and robust build to withstand harsh environments.
- PRECISE RETICLE: Red .223 crosshair reticle designed for accurate aiming out to 800 meters.
- COMPACT AND LIGHTWEIGHT: Weighs only 9.9 ounces and measures 5.8 inches in length for easy handling.
- WIDE FIELD OF VIEW: 36.8 feet at 100 yards for enhanced situational awareness.
- EASY ADJUSTMENTS: Counter-clockwise turret rotation with 2 clicks per inch at 100 yards.
- COMFORTABLE USE: 8.1 mm exit pupil and 1.5 inches of eye relief for a comfortable shooting experience.
- NO BATTERIES NEEDED: Dual-illumination system eliminates the need for batteries, providing reliable performance in all conditions.
Specifications:
| Specification | Details |
|---|---|
| Item Condition | New |
| Scope Weight | 9.9 oz (without mount) |
| Scope Length | 5.8 inches |
| Magnification Range | 4x |
| Scope Objective Diameter | 32mm |
| Turret Adjustment (Click Value) | 2 clicks/inch @ 100 yards |
| Parallax Adjustment | Fixed |
| Reticle Details | Red .223 Crosshair Reticle |
| Field of View | 7°, 36.8 ft @ 100 yards |
| Exit Pupil | 8.1 mm |
| Eye Relief | 1.5 inches |
| Illuminated Reticle | Yes |
| Scope Finish | Black |
| Scope Turret Rotation | Counter Clockwise (CCW) |
| Product Type | Riflescopes |
| UPC | 719307303386 |
| MPN | 100233 |
| SKU | 100233 |
What's Included:
- Trijicon ACOG 4x32 Dual-Illum Riflescope
- TA51 Mount
- Lenspen
- Trijicon Logo Sticker
- Manual
- Warranty Card
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Optics Knowledge Center
Understanding Rifle Scope Basics
Magnification
Magnification refers to how much larger an object appears through the scope compared to the naked eye. Fixed power scopes have one magnification setting, while variable power scopes offer a range (e.g., 3-9x).
Objective Lens
The objective lens is the front lens that gathers light. Larger objective lenses (measured in mm) gather more light, providing brighter images in low-light conditions but add weight and require higher mounting.
Reticle
The reticle (crosshair) is the aiming point inside the scope. Modern scopes offer various reticle designs, from simple duplex crosshairs to complex ballistic reticles with holdover points for different distances.
Adjustments
Rifle scopes have turrets for windage (horizontal) and elevation (vertical) adjustments. These are measured in MOA (minutes of angle) or MRAD (milliradians) and allow precise aiming adjustments.
Proper Scope Mounting Guide
Select the Right Rings & Base
Choose rings that match your scope's tube diameter (typically 1", 30mm, or 34mm). Select a base compatible with your rifle's receiver. For heavy-recoiling rifles, opt for stronger mounts.
Install the Base
Clean the receiver and base thoroughly. Apply a small amount of blue Loctite to the screws. Attach the base to the receiver and torque the screws to manufacturer specifications.
Attach the Rings
Attach the bottom halves of the rings to the base. Place the scope in the rings and loosely attach the top halves. Don't fully tighten yet.
Set Eye Relief & Level
Position the scope for proper eye relief (3-4 inches) in your normal shooting position. Ensure the reticle is level using a scope leveling tool. Once positioned correctly, tighten the rings evenly in a cross-pattern.
Scope Zeroing Tips
Start Close
Begin zeroing at a shorter distance (25-50 yards) to ensure you're on paper before moving to your desired zero distance (typically 100 yards).
Use a Stable Rest
Always zero your rifle from a stable shooting position using a bench rest, sandbags, or a shooting rest to eliminate as much human error as possible.
Fire Groups
Fire 3-shot groups before making adjustments. This provides a more accurate representation of where your rifle is shooting than single shots.
Make Deliberate Adjustments
Know your scope's adjustment values (typically 1/4 MOA per click). If your group is 2 inches low at 100 yards, you'll need to adjust up 8 clicks (for a 1/4 MOA scope).
Confirm Your Zero
After making adjustments, fire another group to confirm your zero. Repeat the process until your point of impact matches your point of aim.
Document Your Settings
Once zeroed, record your settings including distance, ammunition used, and environmental conditions for future reference.
Optics Maintenance & Care
Cleaning Lenses
- Start by blowing or brushing away loose particles
- Use a lens pen or microfiber cloth for fingerprints
- For stubborn dirt, use lens cleaning solution (never household cleaners)
- Clean with gentle circular motions from center outward
Protecting Your Optics
- Always use lens caps when not in use
- Store in a dry place with silica gel packets
- Avoid extreme temperature changes
- Use a quality scope cover in harsh conditions
Regular Maintenance
- Check and tighten mount screws periodically
- Inspect O-rings and seals for damage
- Verify zero after rough handling
- Clean the exterior with a damp cloth
What to Avoid
- Never use fingers to touch lenses
- Avoid paper products (tissues, paper towels) on lenses
- Don't use acetone, alcohol, or household cleaners
- Never disassemble your scope (voids warranty)