The Trijicon Flat Top Adapter Mount bridges your favorite Trijicon optic to any AR or Picatinny rail in seconds. Built for shooters who demand a rock-solid, repeatable zero without fuss, this mount handles the lineup of proven Trijicon sights—ACOG, Reflex, and VCOG models—and installs with just two thumbscrews. It's the kind of straightforward, battle-tested hardware that lets you focus on your shot, not your gear.

Trijicon mounts are engineered for precision and durability. This adapter delivers a consistent optical axis height across supported optics, and at just 4 ounces, it won't add unnecessary bulk to your rifle. The compact 3.50-inch profile keeps your sight picture uncluttered, whether you're running a red-dot reflex sight for close-quarters work or a magnified ACOG for extended range. Thumbscrew attachment means tool-free installation and the ability to swap optics between platforms without breaking your workflow.

Whether you're outfitting a duty rifle, a precision trainer, or a field carbine, a quality mount is non-negotiable. The Trijicon Flat Top Adapter Mount pairs that reliability with the versatility to support multiple optic platforms, making it a smart investment if you've standardized on Trijicon glass.

Key Features

• Two thumbscrew mounting system for fast, tool-free attachment to Picatinny rail
• Compatible with ACOG (3.5x35, 4x32, 5.5x50), 1x42 Reflex (with ACOG bases), and 1-6x24 VCOG
• Lightweight at 4.0 oz—minimal weight penalty
• Compact 3.50-inch length preserves sight picture and cheek rest room
• Consistent optical axis height across supported optics for quick transitions

Specifications

Weight	4.0 oz
Overall Length	3.50 in
Height to Optical Axis (ACOG 3.5x35, 4x32, 5.5x50)	1.535 in
Height to Optical Axis (1x42 Reflex with ACOG Bases)	1.506 in
Height to Optical Axis (1-6x24 VCOG)	1.535 in
Mounting System	Two thumbscrews to Picatinny rail

Frequently Asked Questions

Which Trijicon optics does this mount fit?

The Trijicon Flat Top Adapter Mount is designed for ACOG models (3.5x35, 4x32, and 5.5x50), the 1x42 Reflex sight (when used with ACOG bases), and the 1-6x24 VCOG. If your optic is a different model or brand, confirm compatibility before purchase.

Do I need tools to install this mount?

No. The mount attaches to your Picatinny rail with two thumbscrews, so installation is tool-free and takes seconds. You can install or remove your optic in the field without a wrench or screwdriver.

What's the optical axis height, and why does it matter?

The height from the rail to your scope's center (optical axis) determines where your optic sits above the barrel. This mount holds the ACOG and VCOG at 1.535 inches and the Reflex at 1.506 inches. Consistent height means you can keep the same sight picture and cheek weld across multiple rifles or quick optic swaps.

How much weight does this add to my rifle?

At 4.0 ounces, the Trijicon Flat Top Adapter Mount is a negligible addition to your overall rifle weight and won't appreciably shift your balance or handling characteristics.