Description
Trijicon ACOG 4x32 Riflescope delivers consistent performance in both tactical and precision shooting environments. With a fixed 4x magnification, this riflescope strikes an excellent balance for close-quarters and medium-range engagements. The dual illumination system utilizes fiber optics and tritium, producing a bright reticle in various lighting conditions without requiring batteries. This ensures reliable visibility when it matters most, enhancing your shooting experience.
Engineered for durability, the TA31-D-100288 model features a red chevron reticle calibrated for 5.56x45mm M193 / 55 Grain ammunition. It offers a generous eye relief of 1.5 inches and a wide field of view of 36.8 feet at 100 yards, allowing for quick target acquisition. Constructed from aircraft-grade aluminum, this compact scope measures just 5.8 inches in length and weighs 9.9 ounces, making it a practical choice for both military and civilian applications.
Features – Key Benefits Bullets
- DUAL ILLUMINATION SYSTEM: Combines fiber optics for daylight brightness and tritium for low-light visibility, ensuring a visible reticle without batteries.
- RUGGED CONSTRUCTION: Forged from aircraft-grade aluminum with a hard-anodized finish, designed to withstand extreme conditions and heavy recoil.
- BALLISTIC RETICLE: Red chevron reticle calibrated for 5.56x45mm M193 / 55 Grain ammunition, providing quick and accurate target engagement.
- FIXED MAGNIFICATION: 4x magnification offers an optimal balance between close-quarter combat and medium-range precision shooting.
- WIDE FIELD OF VIEW: 36.8 feet at 100 yards enhances situational awareness and supports rapid target acquisition.
- COMPACT AND LIGHTWEIGHT: Measuring 5.8 inches in length and weighing only 9.9 ounces, designed for maintaining weapon balance and maneuverability.
- GENEROUS EYE RELIEF: 1.5 inches of eye relief provides comfort and safety, especially with heavy recoiling firearms.
- WATERPROOF AND FOG PROOF: Nitrogen-filled and sealed to ensure clear, unobstructed vision in all weather conditions.
Technical Specifications
| Specification | Detail |
|---|---|
| Model | TA31-D-100288 |
| Magnification | 4x |
| Objective Lens Diameter | 32mm |
| Reticle | Red Chevron (5.56x45mm M193 / 55 Grain) |
| Illumination | Dual (Fiber Optics & Tritium) |
| Length | 5.8" |
| Weight | 9.9 oz |
| Eye Relief | 1.5" |
| Field of View | 36.8 ft @ 100 yards (7°) |
| Exit Pupil | 8.1 mm |
| Adjustment Click Value | 2 clicks/inch @ 100 yards |
| Finish | Black |
| Housing Material | Aircraft-grade Aluminum |
| Parallax Setting | Fixed |
| Waterproof | Yes |
| Fog Proof | Yes |
| Battery | No battery required |
| SKU/MPN | 100288 |
| UPC | 719307306882 |
What's in the Box?
- Trijicon ACOG 4x32 Riflescope
- Lens Covers
- User Manual
- Warranty Card
Customer Reviews
“The ACOG 4x32 is incredibly reliable. Target acquisition is fast, and the clarity is impressive.” – Alex S.
“I love the dual illumination feature. It performs well in all lighting conditions.” – Jamie R.
“Compact and lightweight, perfect for my tactical setup. Highly recommend!” – Chris T.
FAQ
Many customers wonder about the performance of the Trijicon ACOG 4x32 in various environments. This riflescope is built to operate effectively in both bright sunlight and low-light situations, thanks to its dual illumination system. Users have reported excellent visibility and reticle clarity, making it a dependable choice for tactical applications.
Maintenance is straightforward, as the ACOG requires no batteries. Regular cleaning of the lenses with a microfibre cloth is recommended to maintain optimal visibility. For those comparing it to other options, the fixed magnification and durable construction set it apart from variable magnification scopes, particularly in terms of reliability during heavy use.
Similar Models
Considering additional optics? Explore our selection of Trijicon products, including the Trijicon RMR series for reflex sights and the Trijicon VCOG scopes for versatile magnification options. Each model is designed to enhance your shooting capabilities. Discover the full collection for tailored solutions to meet your specific needs.
Our Guarantees
FREE Fast Shipping Over $99
Enjoy complimentary expedited shipping on all orders over $99.
Secure Payments
Shop with confidence using our encrypted payment processing.
High Quality or Money Back
Not satisfied with your purchase? We'll refund your money, no questions asked.
Top-Notch Support
Our expert team is available to answer all your questions and provide assistance.
What Our Customers Say
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)