Description

The HW100 O-Ring 12×1.1 is an original-spec replacement seal designed for the Weihrauch HW100 PCP air rifle. This precision O-ring plays an important role in maintaining airtight sealing within the rifle’s internal valve or breech assembly, helping ensure consistent performance and preventing air leaks. Manufactured to match factory dimensions, it is commonly used during servicing, rebuilds, or seal replacement kits for the HW100 platform. Installing a fresh O-ring can restore proper pressure retention and reliable operation of the rifle.