Description
The Trijicon ACOG 4x32 W/TA51 Mount TA31RCO-M150CP-G is engineered for precision with a fixed 4x magnification, allowing for quick target acquisition at various distances. This riflescope utilizes dual illumination technology, combining fiber optics and self-illuminating tritium to ensure the reticle is visible in both bright and low light conditions, enhancing your situational awareness. No batteries are required, making it reliable in any environment. With a Bullet Drop Compensator, it aids in accurate shooting out to 800 meters, delivering high hit probability even in challenging conditions.
Built to meet U.S. Military specifications, this scope features external adjustments for windage and elevation that can be made without tools. It is waterproof up to 11 meters, ensuring durability and reliability in various weather conditions. The integrated mounting bosses allow for easy attachment of a Trijicon RMR (not included), enhancing versatility for different shooting scenarios.
Features – Key Benefits
- DUAL ILLUMINATION for visibility in varying light conditions, ensuring the reticle is always clear.
- QUICK TARGET ACQUISITION with a fixed 4x magnification for fast and accurate shooting.
- TOOL-FREE ADJUSTMENTS for windage and elevation, making on-the-fly adjustments simple and efficient.
- WATERPROOF DESIGN to withstand harsh weather, providing reliability in all conditions.
- BULLET DROP COMPENSATOR for extended range accuracy up to 800 meters, enhancing shooting precision.
- LIGHTWEIGHT FRAME weighing only 9.9 oz, ensuring minimal impact on your weapon's handling.
- INTEGRATED MOUNTING BOSSES for easy addition of accessories, increasing versatility for different shooting needs.
- HIGH EYE RELIEF of 1.5 inches for comfortable viewing, promoting better shooting posture.
Technical Specifications
| Specification | Details |
|---|---|
| Magnification | Fixed: 4X |
| Objective Lens Size | 32mm |
| Exit Pupil | 8mm |
| Eye Relief | 1.5" |
| Field of View @ 100 Yards | 36.8 ft |
| Tube Diameter | N/A |
| Turret Type | Tactical MOA |
| Turret Click Value | .5 MOA |
| Illuminated Reticle | Yes |
| Reticle Focal Plane | N/A |
| Weather Resistance | Water/Fog Proof |
| Weight | 9.9 oz Without Mount |
| Length | 7.3" With ARD |
| Max Elevation Adjustment | 40 MOA |
| Max Windage Adjustment | 40 MOA |
What's in the Box?
- Trijicon ACOG 4x32 Scope
- TA51 Mount
- Lens Covers
- User Manual
Customer Reviews
"The ACOG is solid and reliable; the dual illumination works perfectly in all lighting." - Alex M.
"I love the ease of adjustments; it has made my shooting experience much better." - Jamie T.
"Durable and accurate, this scope meets all my needs on the range." - Chris L.
FAQ
How does the dual illumination work?
The dual illumination system combines fiber optics and tritium to provide a clear reticle in various lighting conditions. The fiber optics adjust the brightness during the day while the tritium glows in low-light situations, ensuring visibility without batteries.
Is the ACOG suitable for all weather conditions?
Yes, this riflescope is waterproof and fog proof, rated to withstand significant exposure to moisture and harsh environments, making it ideal for outdoor use.
How does the ACOG compare to other scopes?
Unlike traditional scopes, the ACOG offers fixed magnification and dual illumination, providing faster target acquisition. It's particularly beneficial for tactical situations where quick engagement is crucial.
Similar Models
Looking for additional options? Check out the Trijicon AccuPoint series for versatile illuminated scopes or the Trijicon VCOG for variable power options. Explore our full collection to find the perfect scope tailored to your shooting needs.
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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)