The AmeriGlo i-Dot Sight Set (GL5101) is a two-dot tritium night sight set for Gen 5 Glock 9mm and .40 caliber pistols, pairing a green tritium front sight with a white outline and a single green tritium rear dot in a dot-over-dot configuration that delivers fast, intuitive vertical sight alignment in full daylight, low light, and complete darkness.
Key Features
- Part Number: GL5101
- UPC: 644406910732
- Type: Tritium night sight set, front and rear
- Style: i-Dot, dot-over-dot configuration
- Compatible Pistols: Glock Gen 5 9mm and .40 caliber
- Note: Does not fit Glock MOS slides
- Front Sight Style: Square post, green tritium with white outline
- Front Blade Width: 0.140 inches
- Front Blade Height: 0.240 inches
- Rear Sight Style: Square notch, single green tritium dot
- Rear Notch Shape: Square
- Rear Notch Width: 0.180 inches
- Rear Blade Height: 0.235 inches
- Overall Rear Height: 0.315 inches
- Body Material: Steel, case-hardened black
- Mount Type: Front post, rear dovetail
- Includes: Front sight and rear sight
- Country of Manufacture: USA
Special Features
- The dot-over-dot i-Dot configuration places the single green rear dot directly below the green front dot when properly aligned, giving the shooter an immediate, instinctive vertical reference that is faster to acquire under stress than a traditional three-dot arrangement where the eye must locate and level three separate points
- The white outline surrounding the green front tritium vial provides strong daylight contrast against dark targets and backgrounds, allowing fast daytime front sight acquisition without requiring the shooter to focus on the tritium element itself, which is less visible in bright ambient light
- Self-luminous tritium vials in both the front and rear sights require no batteries, charging, or ambient light exposure to glow, providing reliable illumination throughout the usable life of the tritium insert which is rated for approximately 12 years
- The case-hardened steel body is resistant to the wear generated by daily holstering, slide racking, and hard training use, maintaining sight integrity and alignment through the service life of the pistol
- The extended rear sight body provides a slightly increased sight radius compared to the factory Glock rear sight, contributing to improved precision at defensive and practical shooting distances
Practical Benefits
- The AmeriGlo i-Dot (GL5101) is a direct upgrade for any Gen 5 Glock 9mm or .40 owner who carries daily and needs a sight system that performs equally well in the bright lighting of a range, the dim lighting of a parking garage, or the darkness of a nighttime defensive situation without any action required by the shooter
- The single rear dot design reduces visual clutter in the sight picture compared to three-dot systems, allowing the shooter to focus on the front sight and target faster during high-stress defensive situations where fine motor skills and deliberate sight alignment are compromised
- The white outline front makes this set a strong choice for shooters who transition between indoor and outdoor lighting frequently, as the outline remains visible and useful across a broader range of lighting conditions than a plain tritium dot alone
The AmeriGlo i-Dot Sight Set (GL5101) is a dependable option for any Gen 5 Glock 9mm or .40 owner who wants a fast-acquiring, battery-free tritium night sight system purpose-built for daily carry, home defense, and low-light use.
| MANUFACTURER | AMERIGLO |