Description
Trijicon ACOG 4x32 Dual-Illum Riflescope Cerakote Sniper Gray, Green Crosshair TA31-C-100378 is a high-performance optical sight designed for precision shooting and tactical applications. This advanced combat optical gunsight combines rugged durability with superior optical clarity, making it an ideal choice for both military and law enforcement personnel as well as civilian shooters.
The riflescope features a 4x magnification and a 32mm objective lens, providing an excellent balance between field of view and target acquisition. Its dual illumination system utilizes both fiber optics and tritium, ensuring the green crosshair reticle remains visible in any lighting condition without the need for batteries.
Coated in a sleek Cerakote Sniper Gray finish, this ACOG model offers enhanced durability and corrosion resistance. The compact design, measuring just 5.8 inches in length and weighing 9.9 ounces, allows for easy maneuverability and reduced fatigue during extended use.
Ideal For: Military and law enforcement operations, competitive shooting, hunting, and home defense scenarios where rapid target acquisition and durability are crucial.
Features:
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DUAL ILLUMINATION SYSTEM: Combines fiber optics for daylight brightness and tritium for low-light conditions, ensuring reticle visibility without batteries
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RUGGED CONSTRUCTION: Forged 7075-T6 aircraft-aluminum housing provides exceptional durability and shock resistance for reliable performance in harsh environments
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ADVANCED OPTICS: Multi-coated lenses deliver superior light transmission and clarity, enhancing target identification and accuracy in various conditions
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BALLISTIC COMPENSATING RETICLE: Green crosshair .223 reticle with bullet drop compensation (BDC) for improved long-range accuracy and faster target engagement
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COMPACT DESIGN: Lightweight (9.9 oz) and compact (5.8" length) construction reduces fatigue during extended use and improves weapon handling
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WATERPROOF AND FOG-PROOF: Nitrogen-filled housing ensures internal optics remain clear and functional in all weather conditions
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CERAKOTE FINISH: Sniper Gray Cerakote coating enhances durability, corrosion resistance, and reduces visual signature in tactical environments
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VERSATILE MOUNTING: Includes a flattop mount for easy installation on Picatinny rail systems, compatible with various firearm platforms
Specifications:
| Specification | Detail |
|---|---|
| SKU/MPN | 100378 |
| UPC | 719307307957 |
| Magnification | 4x |
| Objective Lens Diameter | 32mm |
| Reticle | Green .223 Crosshair |
| Illumination | Dual (Fiber Optics & Tritium) |
| Length | 5.8" |
| Weight | 9.9 oz |
| Eye Relief | 1.5" |
| Field of View | 7° (36.8 ft @ 100 yards) |
| Exit Pupil | 8.1 mm |
| Turret Adjustment | 2 clicks/inch @ 100 yards |
| Turret Rotation | Counter Clockwise (CCW) |
| Parallax | Fixed |
| Finish | Cerakote Sniper Gray |
| Housing Material | 7075-T6 Aluminum |
What's Included:
- Trijicon ACOG 4x32 Riflescope
- Flattop Mount
- Lens Covers
- User Manual
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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)