Steiner Elevation/Windage Lockscrew with O-ring

• Factory-fit compatibility: Designed for Steiner Ranger 4 and Predator 4 riflescopes, this lockscrew with O-ring restores the original fit and function of the elevation or windage adjustment assembly without trial-and-error on sizing.
• Secure turret sealing: The integrated O-ring helps maintain a tight seal around the adjustment point, supporting the scope’s resistance to moisture and dirt during field use.
• Practical service part: As a dedicated Steiner riflescope accessory, it is a sensible replacement when a turret lockscrew is lost, worn or damaged, helping keep the optic ready for use instead of sidelined.
• Compact critical component: Small in size but important in function, this part helps preserve reliable adjustment retention and everyday handling on compatible hunting optics.

About the Steiner Accesories Series

Steiner Accesories covers the supporting components that keep Steiner optics practical in the field and adaptable to specific use cases. Within the brand’s riflescope range, the series includes items such as anti-reflection devices, sunshades, scope covers and magnification throw levers, each aimed at solving a clear real-world need rather than adding unnecessary complexity. The common theme is functional protection and handling: reducing glare, shielding lenses and housings, or making scope operation faster and more secure under hunting conditions.

For riflescope users, this accessory family sits alongside the optic rather than competing with it. Some parts improve concealment and light control, while others protect exposed areas or restore original function after wear or loss. That makes the series especially relevant for hunters and shooters who rely on their equipment over long seasons and in changing weather. In practical terms, Steiner accessories are built to match specific optic families, so fit and compatibility remain consistent with the brand’s mechanical design approach.

About the Steiner Elevation/Windage Lockscrew with O-ring

The Steiner Elevation/Windage Lockscrew with O-ring is a dedicated replacement accessory for compatible Ranger 4 and Predator 4 riflescopes. Although it is a small component, it plays an important role in keeping the turret area complete, protected and mechanically secure. On a hunting riflescope, the elevation and windage assemblies are handled during zeroing and may be exposed to rain, dust, brush and repeated transport. Replacing a missing or damaged lockscrew helps return the optic to proper day-to-day condition.

The inclusion of an O-ring is especially important because it supports sealing at the adjustment point. In practice, that helps limit the entry of moisture and debris around a sensitive part of the scope, which matters for rifles carried in wet vegetation, cold mornings or dusty vehicle travel. Because this is a model-specific Steiner accessory rather than a generic hardware substitute, it is suited to users who want to maintain the original fit of their optic without compromising handling or appearance.

For owners of Steiner Ranger 4 or Predator 4 riflescopes, this part is best understood as preventive maintenance as much as repair. It helps preserve the integrity of the turret assembly, supports dependable field use and keeps a compatible riflescope properly equipped for regular hunting or range work.

About Steiner

Steiner was founded by Karl Steiner in 1947 in Bayreuth, Germany, where the company remains headquartered. The brand is known for building optics for demanding outdoor use, with product lines spanning binoculars, riflescopes and thermal-imaging products. Its products serve hunting, water sports, outdoor, defense and law-enforcement applications, which helps explain the company’s strong emphasis on durability and field reliability.

Over time, Steiner introduced several notable developments in sporting optics. It brought out binoculars with nitrogen filling in 1973 to reduce internal fogging during temperature changes, and in 1979 it introduced a binocular with an integrated compass that established the Commander marine line. Steiner later introduced its Nighthunter concept for hunting optics in 2000, and it has been part of Beretta Holding since August 2008. This background gives Steiner a long-standing reputation for practical optics designed around real use in the field.

Main Features

• Manufacturer: Steiner
• Series: Steiner Accesories
• Product type: Elevation/Windage Lockscrew with O-ring
• Compatible with: Riflescopes
• Application: Ranger 4 / Predator 4

Warranty

2 years. This accessory is covered by a 2-year warranty, making it a suitable factory replacement part for maintaining compatible Steiner riflescopes.