Description
HEAVYWEIGHT STEEL VERSION OF OUR DOUBLE O-RING PISTON
FOR PEOPLE WANTING MAXIMUM RECOIL AND DURABILITY!
These can be used with any version of the KC-02 semi-auto bolt carriers, such as our V14 aluminium and steel bolts. They also fit the standard factory bolt carriers.
Main difference between the V2 and V3 piston design is simply the extra O-ring on the tail that reduces the need for wrapping it in PTFE tape, helps seal it into the bolt carrier with less effort on the V3 design. The performance is the same.
Assembly video here.
Standard piston weight: 22 grams
Aluminium piston weight: 10 grams
Stainless Steel piston weight: 30 grams
V2 RW Piston details:
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Double O-ring.Ā Instead of 1 large tight-fitting O-ring, the V2 piston uses 2 smaller O-rings which have been precisely spec'd to be exactly the same diameter as the cylinder it fits into. This massively reduces the amount of friction on the nozzle movement during blowback, while still maintaining an excellent seal thanks to using 2 O-rings instead of 1. This reduces the dependency on heavy lubrication of the piston, and allows lubricant to get trapped between the 2 rings instead of escaping the cylinder.
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Double-Ported.Ā The V2 piston features both traditional front-face ports and internal ports that connect together behind both O-rings to still provide some of that tried-and-tested O-ring pressure sealing that was the defining feature of the V1 KF piston and many other ported airsoft pistons.
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Built like a tank!Ā The re-design of the front face and O-ring grooves means that all weak points have been removed from the design. We will not be seeing any more bent or broken piston crowns during assembly or after extended use. The V2 is tough as nails!
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Re-worked Tail Design.Ā A carefully radiused re-design of the tail notch on the piston provides a much more secure fit into the bolt carrier with significantly reduced forward-backward axial movement.
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Radical New Look.Ā We could pretend that the beautiful spiral grooves cut into the V2 piston are for weight-saving, but really they are just too look amazing! The V2 design actually comes out weighing almost exactly the same as the V1 (around 10g/0.35oz). The spiral grooves just make it obvious you've got a RW piston without the need for additional laser engraving.
We still recommend wrapping the tail of the piston in a couple layers of thin PTFE tape, just to seal the return spring pin in place, and stop the piston rattling around at all in the bolt carrier. The gun will still work without PTFE tape, we just recommend it. SeeĀ this videoĀ for reference on what we're talking about.
These are Novritsch SSQ-22 compatible and A1A clone variants,
