Marushin FN Five-seveN (5-7) Factory Replacement OEM CO2 Piercing Valve Seal

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  • $4.10
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The Marushin FN Five-seveN (5-7) Factory Replacement OEM CO2 Piercing Valve Seal is the product you didn't think you need, but once you have it, something you won't want to live without.

Inventory Last Updated: Feb 06, 2026