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Do you need to buy nitrogen gas for the crosman NPSS .177?

April 26, 2017buy crosman Gas hunting nitrogen npss Outdoor Recreation Sports

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Do you need to buy nitrogen gas for the crosman NPSS .177?

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No, the piston is filled with nitrogen. These pistons are very durable, you should never have to buy or replace one in normal use. The nitrogen piston replaces the mainspring. Gas pistons are not new, but the NPSS is a new twist on the concept. Crosman NPSS – specs – info – review – article http://www.pyramydair.