Description

The HW100 O-Ring 4×1.5 is a precision replacement sealing component designed for the Weihrauch HW100 PCP air rifle platform. This O-ring is installed in the fill probe or probe buffer area, where it ensures a secure and airtight seal during the air-filling process and normal operation of the rifle. Manufactured to match original specifications, it is commonly replaced during routine maintenance, servicing, or seal kit upgrades. Proper installation of the correct O-ring helps prevent air leaks and ensures consistent pressure retention and reliable performance of the HW100 air system.