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Withstands high pressure
Possesses good mechanical memory, restore the shape close to the original
Replacing with polyurethane one allows you to increase the service life of the piston seal several times at the lowest cost
Recommended when installing gas springs
Highest service life and reliability
Polyurethane high pressure piston seal. Has several times longer service life compared to factory seals. Compatible with air rifles: Crosman C11, Crosman C11 Tactical , Crosman C21, Crosman C31, Crosman 1911BB, Crosman PFM-16, Borner WC 401, Borner M84, Borner C11, Borner Sport 306, KWC M84, KWC 401, KWC 321, Colt Defender