Technical Details 

• Brand: Gehmann.
• Type: Clear front sight aperture.
• Size: 3.8 mm.
• Thread Size: M18.
• Compatibility: Fits standard M18 front sight tunnels.
• Discipline: 10m Air Rifle, 50m Rifle.

The Gehmann Clear Aperture M18 – 3.8 is a high-quality front sight insert developed for shooters who prefer a minimalistic and uncluttered sight picture. Featuring a 3.8 mm clear aperture, this insert allows maximum light transmission while maintaining accurate centring of the target, making it especially effective in consistent lighting conditions.

Manufactured by Gehmann, a globally respected name in shooting optics, this clear aperture is designed to fit M18 front sight tunnels, ensuring compatibility with most standard match rifles. The transparent design reduces visual distractions and helps shooters maintain strong focus on sight alignment and target clarity.

Ideal for 10m air rifle and 50m rifle disciplines, the Gehmann Clear Aperture is widely used by shooters who value simplicity, precision, and reliability in their front sight setup.