The Trijicon ACOG Riflescopes lineup delivers legendary, combat-proven durability and fixed-power optical clarity trusted by military forces, law-enforcement units, and professional shooters worldwide. Designed for absolute ruggedness and rapid target acquisition, the ACOG (Advanced Combat Optical Gunsight) combines a fixed-magnification design with battery-free illumination, shockproof construction, and unmatched reliability in the harshest environments.

Built from a single forged aluminum housing and featuring tritium/fiber-optic illuminated reticles, ACOG riflescopes excel in both bright and low-light conditions without needing batteries or manual adjustments. Their optical clarity, bullet-drop compensating reticles, and intuitive eye-focus design make them ideal for general-purpose carbines, AR-platform rifles, and service weapons.

Key Features

Fixed-Power Simplicity & Speed
Designed for rapid target acquisition with a fixed magnification (1.5×, 3.5×, 4×, 5.5×), providing a bright, clear sight picture without moving parts.

Battery-Free Illumination
Tritium and fiber-optic technology automatically adjust reticle brightness based on ambient light—ensuring continuous readiness.

Combat-Proven Construction
Forged 7075-T6 aluminum housing, waterproof sealing, and extreme shock resistance deliver unmatched durability in battlefield conditions.

BDC Reticles for Multiple Calibers
Bullet-drop compensating reticles designed for 5.56, 7.62, and other service calibers offer fast holdovers from CQB to extended ranges.

Both-Eyes-Open Shooting (BAC)
Trijicon’s Bindon Aiming Concept allows shooters to maintain full situational awareness with both eyes open at 1× equivalent speed.

Superior Optical Clarity
High-performance glass and multi-coated lenses deliver crisp detail, excellent contrast, and optimal light transmission.

Rugged, Field-Ready Performance
ACOGs are fully waterproof, fogproof, and shockproof—built to endure extreme environments, heavy recoil, and hard use.

Wide Model Range
Includes compact ACOGs, carbine-optimized variants, dual-illuminated reticles, and models paired with piggyback RMR red dots.

Compatible Mounting Options
Works with Picatinny, carry-handle, and quick-detach mounts for modern carbines, AR-15/AR-10 platforms, and service rifles.

Designed for Professional Use
Selected by the U.S. military and global armed forces for proven reliability and long-term service performance.