Description

The HW100 O-Ring 7×1.5 is a factory-specification sealing component used in the Weihrauch HW100 air rifle system. This O-ring is typically installed on the regulator piston within the rifle’s air regulation mechanism, ensuring an airtight seal that helps maintain consistent air pressure and reliable shot performance.

Manufactured to the original 7 mm inner diameter and 1.5 mm cross-section dimensions, it is designed to fit precisely within the regulator assembly and withstand repeated pressure cycles during operation. Over time, O-rings can wear due to friction and air pressure, so this part is commonly replaced during routine servicing or when pressure consistency issues are detected.