piston head with pressure deviation bearings

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Pressure deviation ergal bearing piston head with double O-ring (TPAE)This head diverts the air pressure inside the cylinder by 90 degrees, directing it directly onto the O-ring se al.Its adoption improves the homogeneity of the shots and consequently the precision of the rifle itself.Therefore, its use on rifles is recommended with barrels of 363 mm and above.Weight: 10.65 grams Show more