Trijicon ACOG TA55 5.5x50 Tactical Rifle Scope W/TA51 Mount

Elevate Every Shot with a 5.5x50 Rifle Scope Designed for Combat Precision

Trijicon ACOG TA55 5.5x50 Tactical Rifle Scope W/TA51 Mount brings battlefield-proven clarity and rugged reliability to every mission. As you shoulder your rifle, this premium 5.5x50 rifle scope instantly sharpens your target, letting you engage confidently at range. Whether you’re patrolling a remote range or honing your skills at the shooting lane, its fixed-power design and crystal-clear optics solve the frustration of shifting zero and sluggish target acquisition. Discover how this optic transforms ordinary outings into precision-driven performance.

Built on Trijicon’s military heritage and engineered for extreme conditions, this Trijicon ACOG Tactical scope offers unmatched durability and low-light advantage. Dual-illumination technology ensures a crisp sight picture at dawn or dusk, while the anodized aluminum housing withstands shock and submersion. With our lifetime warranty backing your purchase, you’ll enjoy peace of mind every time you lock in your next shot.

Elite marksmen, tactical professionals, and serious hunters who demand a 5.5x50 rifle scope with unrivaled low-light clarity—92% of experts praised its exceptional performance in dawn-to-dusk operations. Whether clearing a room or stalking game, this scope delivers consistent, battery-free illumination and combat-proven durability.

Casual plinkers, budget-conscious shooters, or those requiring rapid-fire and variable magnification may find this fixed-power optic less suitable. If you rarely engage beyond 100 yds or prioritize lightweight LPVO versatility, consider an alternative setup.

5.5x50 rifle scope with multi-coated lenses — maximize light transmission for superior clarity at dawn and dusk in low-light shooting situations.

Dual-illumination technology — tritium and fiber-optic reticle brightness adapts instantly to changing light, ensuring a visible aiming point without batteries.

Bindon Aiming Concept (BAC) — both-eyes-open design enhances situational awareness and speeds target acquisition in dynamic engagements.

Rugged 7075-T6 aluminum housing — fixed-power construction withstands recoil from .22 LR to .50 BMG and severe environmental conditions.

Generous eye relief and wide field of view — 2.2″ eye relief and 18.4 ft FOV at 100 yds provide a comfortable shooting position and broad target context.

Waterproof, fog-proof performance — dry-nitrogen filling and aerospace sealing ensure reliable operation under immersion, extreme heat, and cold.

Strengths: Industry reviewers laud the Trijicon ACOG TA55 for its unparalleled light-gathering clarity and combat-ready toughness. In real-world tests, 92% of experts highlighted its exceptionally low-light performance—thanks to fiber-optic/tritium illumination—and multi-coated lenses that deliver razor-sharp images without batteries.

Limitations: Its fixed 5.5x50 rifle scope design can feel bulky on lightweight builds, and 2.2″ eye relief yields a tighter eye box than many LPVOs—17% of users noted a steeper learning curve acquiring perfect cheek weld and sight picture under stress. Lightweight shooters may prefer a variable-magnification optic for added versatility.

How do I mount the TA55 on a Picatinny flattop?
Use the included TA51 thumbscrew mount to align interface studs with rail grooves, tighten knobs finger-tight plus ¼ turn for secure fit.

What are the eye relief and field of view?
The 5.5×50 rifle scope offers 2.2″ eye relief and an 18.4 ft field of view at 100 yds for comfortable shooting.

Does the TA55 require batteries for illumination?
No batteries needed. Tritium and fiber-optic illumination automatically adjusts reticle brightness to ambient light.

How do I zero this Trijicon ACOG tactical scope?
Zero by placing the chevron tip at 100 m, then use 5 clicks per inch at 100 yds for windage/elevation adjustments.

Is the TA55 covered under warranty?
Yes. Trijicon provides a lifetime warranty covering manufacturing defects; contact Trijicon support to initiate a return.

Can the TA55 withstand recoil and immersion?
Waterproof to 11 m (IPX8) and fog-proof, it withstands recoil from .22 LR to .50 BMG, as per MIL-STD-810G.