Weihrauch Piston Seal 9070

The Weihrauch Piston Seal 9070 is a precision replacement piston seal designed to restore the compression and performance of your Weihrauch air rifle. A worn piston seal is one of the most common causes of reduced power, inconsistent velocity, and poor shot-to-shot performance. Replacing the seal helps restore the rifle's original efficiency and smooth firing cycle.

Before installing the new piston seal, make sure the compression cylinder is thoroughly cleaned and completely free from oil, grease, and dirt. A clean cylinder allows the seal to bed in correctly, ensuring maximum compression and long service life.

If you own an older Weihrauch Models like HW 30 and HW 50 fitted with a leather piston seal, converting to the modern synthetic seal requires the adapter 8621 and retaining screw 8960.

Manufactured to precise specifications, the 9070 piston seal provides an accurate fit, excellent sealing performance, and outstanding durability, making it an ideal replacement for maintenance, repairs, or restoring your Weihrauch HW 50 to peak performance.