Description

The HW100 O-Ring 4×1.5 is a precision replacement seal developed for the Weihrauch HW100 PCP air rifle platform. Installed in the probe buffer or filling system area, this O-ring helps ensure a secure airtight seal during the air-filling process and normal operation of the rifle. Manufactured to match original factory specifications, it is typically replaced during routine maintenance or when servicing the rifle’s sealing components. Proper replacement of worn seals helps prevent air leaks and maintains consistent pressure and performance in the HW100 system.