Hw90 - Reseal

: Use Krytox or high-quality Moly grease . Avoid synthetic engine oils that can cause O-rings to swell. Specialty Tools : You will need a Gas Ram Charging Pump (like the

: Many enthusiasts recommend upgrading from the factory seal to an aftermarket option like an , , or for better performance. HW90 Reseal

is a powerhouse in the air rifle world, famous for its unique . Unlike a standard spring-piston rifle, the HW90 uses pressurized air as its powerplant. While this makes for a smoother, more adjustable shot cycle, it also means that once those internal seals fail, your rifle becomes a very heavy paperweight. : Use Krytox or high-quality Moly grease

: Includes the necessary O-rings (typically two OR066 and two OR070), a scraper ring, and a new Schrader valve. Replacement Piston Seal is a powerhouse in the air rifle world,

Restoring the Punch: A Step-by-Step Guide to Resealing Your Weihrauch HW90 Weihrauch HW90