Description
Trijicon ACOG 3.5x35 .308 Red Chevron TA11E 100142 is a high-performance riflescope designed for precision shooting and tactical applications. This fixed 3.5x magnification scope features a 35mm objective lens, providing excellent light transmission and a clear sight picture. The red chevron reticle is specifically calibrated for .308 Winchester rifles, offering ranging capabilities up to 800 meters.
The ACOG (Advanced Combat Optical Gunsight) utilizes a dual-illumination system combining fiber optics and tritium. This innovative technology automatically adjusts the reticle brightness based on ambient light conditions, ensuring optimal visibility in any environment without the need for batteries. The scope's rugged construction and compact design make it ideal for harsh conditions and close to medium-range engagements.
Trijicon ACOG 3.5x35 .308 Red Chevron TA11E 100142 is renowned for its durability and reliability. It features a shockproof and fogproof design, ensuring consistent performance in challenging situations. With a generous eye relief of 2.4 inches and a wide field of view of 28.9 feet at 100 yards, this scope offers quick target acquisition and enhanced situational awareness.
Ideal For: Military and law enforcement personnel, competitive shooters, and hunting enthusiasts seeking a battle-proven optic for their .308 caliber rifles. Its durability, optical clarity, and specialized ballistic reticle make it an excellent choice for those who demand precision and reliability in their riflescope.
Features:
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DUAL ILLUMINATION SYSTEM: Combines fiber optics and tritium for automatic reticle brightness adjustment, ensuring optimal visibility in any lighting condition without batteries.
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BALLISTIC RETICLE: Specialized .308 Winchester calibrated chevron reticle with ranging capabilities up to 800 meters, enhancing accuracy and target engagement at various distances.
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RUGGED CONSTRUCTION: Shockproof and fogproof design, built to withstand harsh environments and heavy recoil, ensuring reliable performance in challenging conditions.
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OPTICAL CLARITY: 35mm objective lens and quality glass provide excellent light transmission and a clear, crisp sight picture for improved target identification.
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COMPACT DESIGN: 8-inch length and 14-ounce weight (without mount) offer a lightweight and compact solution for improved weapon handling and maneuverability.
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QUICK TARGET ACQUISITION: 3.5x fixed magnification, 2.4-inch eye relief, and 28.9-foot field of view at 100 yards enable fast target acquisition and enhanced situational awareness.
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PRECISE ADJUSTMENTS: 1/4 MOA click value for windage and elevation adjustments, allowing for fine-tuning and accurate shot placement.
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VERSATILE MOUNTING: Includes TA51 mount for easy installation on Picatinny rail systems, ensuring secure attachment to various firearm platform.
Specifications:
| Specification | Detail |
|---|---|
| SKU/MPN | 100142 |
| UPC | 719307300088 |
| Magnification | 3.5x (Fixed) |
| Objective Lens Diameter | 35mm |
| Reticle | .308 Red Chevron |
| Illumination | Dual (Fiber Optics/Tritium) |
| Eye Relief | 2.4" |
| Field of View | 28.9' @ 100 yards |
| Exit Pupil | 10.0 mm |
| Length | 8" |
| Weight | 14 oz (without mount) |
| Adjustment Click Value | 1/4 MOA (3 clicks/inch @ 100 yards) |
| Parallax | Fixed |
| Finish | Black |
| Waterproof/Fogproof | Yes |
| Mount Included | TA51 |
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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)