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Fully Stainless 303 constructed and with bearing thrust system , and strongest detent spring ever to solve your wobble reciever.


Best recommendation use on HAO advance one-piece cylinder with minor tolerance and best air-tight! Competible with Systema OEM cylinder. Other third-party cylinder don't recommend.

Enhanced Bottom Assembly

SKU: O20
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    All the products are made and design for Airsoft use. Any modification of structure, exterior, appearance or painting, marking or wiping the cover/instruction on the merchandise may lead to violate your nation's law regulation. Customers shall bear the full legal liability after the modification.


    • CNC turned Stainless steel 303 bottom
    • SUS303 Bearing System & securing ball
    • Carbon Steel detent spring 
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