This adapter / upgrade is designed primarily for 26mm cylinder Weihrauch airguns with leather piston seal mounted. With this Vac-Seal 26 synthetic upgrade you obtain significantly better performance and smoother operation, and significantly more damping against piston slam. Easily installed with a standard Allen key. The VORTEK Vac-Seal also prevents spring fracture, which is commonly found on older spring rifles with leather piston seal.
Note that long-term use of faulty leather piston seal will result in scratches and dents in the cylinder, which may affect performance. Be sure to remove all sharp edges and scratches before you mount the Vac-Seal conversion in your spring air rifle.
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