Description
Trijicon ACOG 5.5x50 Riflescope .308 Red Chevron TA55A 100175 delivers reliable performance for precision shooting and tactical applications. Built with a 5.5x magnification and a 50mm objective lens, it offers an impressive field of view of 18.4 feet at 100 yards. The illuminated red chevron reticle is calibrated for .308 ammunition, ensuring accurate aiming at various distances. Its military-grade aluminum housing provides durability and stability, perfect for challenging environments.
The Bindon Aiming Concept (BAC) enhances target acquisition and situational awareness, while the fixed parallax setting and generous 2.2 inches of eye relief promote comfortable use and consistent accuracy. Compact at 12 inches long and weighing 25.6 ounces, this riflescope balances performance with portability, making it an excellent choice for military, law enforcement, and serious marksmen.
Features – Key Benefits Bullets
- ADVANCED OPTICAL SYSTEM: 5.5x magnification with a 50mm objective lens ensures exceptional light transmission, delivering clear images in low-light conditions.
- ILLUMINATED RETICLE: Red chevron reticle calibrated for .308 ammunition, providing precise aiming points without requiring batteries.
- RUGGED CONSTRUCTION: Military-grade aluminum alloy housing resists harsh conditions, ensuring long-lasting durability in tactical scenarios.
- BINDON AIMING CONCEPT: Enables rapid target acquisition, improving shooting performance and situational awareness.
- COMPACT AND LIGHTWEIGHT: At 12 inches long and 25.6 ounces, it balances performance with portability, reducing user fatigue.
- FIXED PARALLAX: Minimizes aiming errors and enhances accuracy across different shooting distances.
- GENEROUS EYE RELIEF: 2.2 inches of eye relief protects against recoil and ensures comfortable viewing.
- PRECISION ADJUSTMENTS: 5 clicks per inch at 100 yards allow for fine-tuning, ensuring maximum accuracy in shooting conditions.
Technical Specifications
| Specification | Detail |
|---|---|
| Model | TA55A |
| SKU | 100175 |
| Magnification | 5.5x |
| Objective Lens Diameter | 50mm |
| Reticle | Illuminated Red .308 Chevron |
| Eye Relief | 2.2" |
| Field of View | 18.4' @ 100 yards |
| Exit Pupil | 9.1 mm |
| Length | 12" |
| Weight | 25.6 oz |
| Housing Material | Military-Grade Aluminum Alloy |
| Turret Adjustment | 5 clicks/inch @ 100 yards |
| Parallax Setting | Fixed |
| Finish | Black |
| UPC | 719307302037 |
What's in the Box?
- Trijicon ACOG 5.5x50 Riflescope
- Lens covers
- User manual
- Warranty card
Customer Reviews
“The clarity at distance is impressive. Perfect for my .308 setup.”
“Solid build and easy to adjust. Great for tactical use.”
“Best scope I’ve used for medium-range shooting. Highly recommend.”
FAQ
Many customers inquire about the performance of the Trijicon ACOG 5.5x50 in various lighting conditions. Its advanced optical design ensures excellent visibility even in low-light scenarios, making it ideal for dawn and dusk use. Additionally, the illuminated reticle enhances targeting without relying on batteries, providing reliable performance in critical situations.
Maintenance is straightforward; regular cleaning of the lenses with a microfiber cloth will keep the optics clear. Users often ask how it compares to other tactical scopes. The ACOG's rugged build and innovative Bindon Aiming Concept distinguish it from competitors, particularly for those requiring rapid target acquisition and durability in demanding conditions.
Similar Models
Exploring more from Trijicon? Check out the Trijicon ACOG 4x32 for a compact option or the Trijicon VCOG 1-8x28 for versatile magnification. Discover the full range of Trijicon optics tailored to meet 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)