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Silent Fill Valve O-Ring

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KWA GBB Silent Fill Valve O-Ring 4 Pack

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Set of fill valve o-rings for KWA GBB Magazines


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The KWA Fill Valve O-Ring Pack is a 4 piece set of replacement o-rings for any KWA GBB pistol or rifle magazine. The silent fill-valve o-ring prevents leaks while filling your green gas or propane mags.

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Unmatched quality and service!

Founded in 2004, Airsoft Outlet Northwest (AONW) is the leader in quality airsoft and tactical gear in the Pacific Northwest. We're dedicated to providing the best service and products for our customers! We believe in honest and fair treatment of our customers while delivering superior value at a reasonable cost. That's why we offer the best warranty in the industry by providing in house warranty service on many quality brands like Classic Army, G&G, TopTech, and Echo-1. If you buy from us then you can rest assured knowing that you'll be taken care of.