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  1. Sig Sauer MCX 9" .300 Blackout Suppressed Upper Kit

    Sig Sauer MCX 9" .300 Blackout Suppressed Upper Kit

    Regular Price: $2,379.99

    Special Price $1,799.99


    Sig Sauer MCX 9" .300 Blackout Suppressed Upper Kit Learn More

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Sig Sauer's Caliber X-Change Kits let you change the caliber of your centerfire pistol. These are specific to your exact model of pistol. You cannot use a P229 Caliber X-Change Kit on a P226 or vice versa.