Trijicon 5.5×50 ACOG Riflescope
Command intermediate combat sectors with the large-aperture Trijicon 5.5×50 ACOG Riflescope, featuring fixed 5.5x magnification, dual battery-free illumination, and a forged 7075-T6 aluminum housing.
- 5.5x fixed magnification resolves distant silhouettes
- 50mm objective glass provides superior brightness
- Dual illumination eliminates battery replacement needs
- 1/4 MOA click adjusters hold zero
In Stock
Description
Tested 1000G combat drop resistance accompanies Trijicon 5.5×50 ACOG Riflescope systems, pairing fixed 5.5x magnification with an expansive 50mm objective lens and dual battery-free illumination. The large objective brightens distant targets, though the heavier 25.6-ounce housing adds noticeable forward weight to light tactical carbine receiver builds.
Solid 7075-T6 forged aluminum forms a massive optical housing built to endure severe combat field abuse and rough handling. Broadband multi-coated prism elements channel brilliant daylight to the shooter eye pupil, while nitrogen gas purging prevents internal fogging down to 100-foot depths. Total unladen weight measures 25.6 ounces across a 12.0-inch chassis, providing exceptional structural density that resists violent drop shock.
Key Features of Trijicon 5.5×50 ACOG
Marksmen who buy Trijicon 5.5×50 ACOG combat optics attain extended observation power and rapid target engagement capabilities. The dual-illuminated reticle operates continuously without external battery cells across desert sun and midnight operations.
- 5.5x fixed prism magnification expands positive target identification out past 800 yards
- 50mm objective lens pulls in exceptional ambient light under deep dawn conditions
- Dual fiber optic and tritium power sources light the reticle without battery packs
- Ballistic drop crosshair reticle provides calibrated holdover marks for service rifle ammunition
- 1/4 MOA internal click dials track clean adjustments across 30 MOA total travel
- Trijicon 5.5×50 ACOG forged bodies withstand severe 1000G drop shocks on solid terrain
- Fixed 100-yard parallax maintains aim point lock without requiring manual adjustment dials
- TA51 flattop mount attaches directly onto mil-spec 1913 Picatinny receiver rails
Prism Internal Ballistics Durability
Precision internal lead screws deliver 1/4 MOA click graduations across 30 MOA total elevation adjustment span. Reticle hash marks correspond to service ballistics, offering immediate holdovers without dialing turrets in dynamic tactical environments. The optical train functions across thermal extremes from -40°F to 140°F, maintaining reticle tracking accuracy within 1 percent of true calibration across repeated physical recoil shock impulses.
Chassis Placement Base Limits
The TA51 flattop mount secures the optic to mil-spec Picatinny rails with cross-bolts tightened to 45 in-lbs torque. The 12.0-inch chassis requires 5.0 inches of rail mounting span, leaving room for forward night vision clip-on equipment. Eye relief measures 2.2 inches, providing comfortable brow clearance on heavy centerfire rifle platforms.
Field Protocol Negative Demarcation
Designed for designated marksman rifles and perimeter defense carbines, this fixed 5.5x optic is not engineered for close-quarters room clearing where non-magnified red dot optics excel. Marksmen must train consistent head placement to utilize the 50mm optical eyebox effectively.
- Confirm base cross-bolt torque using an accurate tool every 200 rounds
- Clean external glass surfaces with lens cleaner and microfiber every 100 rounds
- Clear dust and carbon fouling from the fiber collector tube every outing
Warranty Statement Package Manifest
The ACOG optical system and metal chassis carry a limited lifetime warranty, while the tritium night illumination source is covered for 15 years from manufacture. Shipments contain the 5.5×50 ACOG optic, TA51 Picatinny mount, protective neoprene Scopecoat, lens cleaning pen, and manual.
Trijicon 5.5x50 ACOG Riflescope Specs
| Brand | Trijicon |
| Magnification | 5.5x |
| Objective Lens Diameter | 50 mm |
| Field of View | 18.4 Feet @ 100 yd / 6.4m @ 100 m |
| Exit Pupil Diameter | 9.1 mm |
| Eye Relief | 2.2 Inches / 56mm |
| Diopter Correction | No |
| Impact Point Correction | 1/7 MOA per Click |
| Windage Adjustment | 40 MOA |
| Elevation Adjustment | 40 MOA |
| Environmental Protection | Water-Resistant (Unrated) |
| Battery | No |
| Dimensions | Length: 12 Inches / 30.5cm |
| Weight | 25.6oz / 726g (without Mount) |
| Package Weight | 2.3 lb |
| Box Dimensions (LxWxH) | 12.9 x 4 x 3.8 Inches |
Trijicon 5.5x50 ACOG Riflescope Included:
- Trijicon 5.5x50 ACOG Riflescope
- Trijicon ACOG Picatinny Rail Adapter
- Trijicon ACOG Scopecoat
- Trijicon LensPen - TA56
- Trijicon Weatherproof Logo Sticker




















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