Description

The HW100 O-Ring 3×1 is a precision replacement seal used in the Weihrauch HW100 PCP air rifle platform. This small but essential component helps maintain airtight sealing within internal assemblies of the rifle, preventing air leaks and supporting consistent performance. Manufactured to match the original factory specifications, it is typically replaced during routine maintenance, servicing, or when restoring the rifle’s sealing system. Correctly sized seals such as the 3×1 mm O-ring are important to ensure stable pressure retention and proper function of the HW100 air system.