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This is a Bore-Up Piston Head by SHS. It is constructed with POM material and comes with thrust bearings.
Bore-Up Piston Head's are only compatible with Bore-Up Cylinders. They will not fit in standard AEG Cylinders.
If you are going to use these Piston Heads in a high rate of fire gearbox, then I highly recommend removing the Thrust bearings. I also recommend using threadlocker on the main screw to secure the piston head onto the piston.
Defective products subject to a manufacturer's warranty must be handled under the terms of the manufacturer's warranty. Please read the terms carefully and follow their procedures. Please send back to manufacture for repairs. The warranty period for these products is determined by the manufacturer.
SS Airsoft does not provide a warranty on products without a manufacturer’s warranty, unless explicitly stated. Warranties are not available for any Special Sale or Closeout products. Items received free or as part of a package sale may not be returned individually unless the entire package is returned at the discounted or package price
All returns are subject to inspection by our returns department before being processed. Products must be in original packaging with all original accessories and be in new, functioning condition .Returns that are missing the factory packaging, are not returned in new condition, opened or used consumables, or show signs of abuse may not be returned or are be subject to a minimum 20% restocking fee.
We do not cover nor refund the costs of returned shipping to us