Designed to meet the challenges of precision accuracy at extremely long distances, the Mark 4 Extended Range/Tactical (ER/T®) series is built for sharpshooters.
1/4 MOA Target
Features ¼-MOA target-style click windage and elevation adjustments.
2nd Generation Argon/Krypton Waterproofing
Features our exclusive, proprietary Argon/Krypton gas blend, which nearly eliminates the effects of thermal shock, and reduces the diffusion of gases sealed inside your scope even more than our proven nitrogen technology already does.
The 30mm maintube offers incredible strength and allows for the greater range of windage and elevation adjustment.
A 34mm maintube produces unparalleled windage and elevation adjustment travel.
3:1 Zoom Ratio
A versatile 3:1 zoom ratio erector system that is ideal for virtually any situation.
3rd Generation Illumination
Third-generation illumination features a 15 percent brighter reticle, several different intensity settings (depending on model), and a redesigned, user-friendly interface.
6061-T6 Aircraft Quality Aluminum
Crafted from 6061-T6 aircraft quality aluminum.
Blackened Lens Edges
Blackened lens edges reduce light diffusion, so more usable light reaches the shooter’s eye. This results in a brighter image with increased contrast.