Description
Trijicon ACOG 5.5x50 Riflescope .223 Red Chevron TA55 100173 is a highly reliable and precise optical instrument designed for advanced combat and tactical applications. With a fixed 5.5x magnification and a large 50mm objective lens, this riflescope offers exceptional clarity and a wide field of view, making it ideal for medium to long-range engagements. The illuminated Red Chevron reticle, powered by tritium and fiber optics, ensures optimal visibility in all lighting conditions without the need for batteries.
The Trijicon ACOG 5.5x50 Riflescope .223 Red Chevron TA55 100173 features a robust and durable construction, capable of withstanding the harshest environments. Its black finish and compact design make it both aesthetically pleasing and functional. The scope's internal adjustments and fixed parallax provide consistent performance, while the 2.2-inch eye relief ensures comfortable use over extended periods.
Designed specifically for the .223 caliber, this riflescope is perfect for use with the M16 family of rifles. The reticle's chevron design allows for quick target acquisition and accurate range estimation, enhancing hit potential in various combat scenarios. The scope's Bindon Aiming Concept (BAC) allows for both eyes open shooting, providing greater situational awareness and faster target engagement.
Ideal For:
- Military and law enforcement personnel
- Tactical shooters
- Medium to long-range engagements
- Use with .223 caliber rifles
Features:
- ILLUMINATED RETICLE: Tritium and fiber optics provide a bright, battery-free illuminated reticle for all lighting conditions.
- DURABLE CONSTRUCTION: Built to withstand harsh environments with a robust and compact design.
- OPTIMAL CLARITY: 50mm objective lens and 5.5x magnification offer exceptional clarity and a wide field of view.
- EASY ADJUSTMENTS: Internally adjustable with fixed parallax for consistent performance.
- CHEVRON RETICLE: Red Chevron reticle designed for quick target acquisition and accurate range estimation.
- BINDON AIMING CONCEPT: Allows for both eyes open shooting, enhancing situational awareness.
- SPECIFICALLY DESIGNED: Optimized for use with .223 caliber rifles, ideal for the M16 family.
- COMFORTABLE USE: 2.2-inch eye relief ensures comfort during extended use.
Specifications:
| Specification | Details |
|---|---|
| Item Condition | New |
| Scope Weight | 25.6 oz. |
| Scope Length | 12" |
| Magnification Range | 5.5x |
| Scope Objective Diameter | 50mm |
| Turret Adjustment (Click Value) | 5 clicks/inch @ 100 yards |
| Parallax Adjustment | Fixed |
| Reticle Details | Red .223 Chevron Reticle |
| Field of View | 18.4' @ 100 yards |
| Exit Pupil | 9.1 mm |
| Eye Relief | 2.2" |
| Illuminated Reticle | Yes |
| Scope Finish | Black |
| Product Type | Riflescopes |
| UPC | 719307302020 |
| MPN | 100173 |
What's Included:
- Trijicon ACOG 5.5x50 Riflescope .223 Red Chevron TA55 100173
- Trijicon Flat Top Adapter
- 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)