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  1. Sig Sauer MCX 9" .300 Blackout Suppressed Upper Kit
    Sig Sauer MCX 9" .300 Blackout Suppressed Upper Kit Learn More
  2. Sig Sauer MCX AR15 Conversion Kit - 16" .300 BLK

    Sig Sauer MCX AR15 Conversion Kit - 16" .300 BLK

    Regular Price: $1,489.99

    Special Price $1,329.00


    Sig Sauer MCX AR15 Conversion Kit - 16" .300 BLK Learn More
  3. Sig Sauer MCX Conversion Kit (Tapered Lug) - 16" .300 BLK
    Sig Sauer MCX Conversion Kit (Tapered Lug) - 16" .300 BLK Learn More
  4. Sig Sauer MCX Conversion Kit (Tapered Lug) - 16" 5.56mm NATO
    Sig Sauer MCX Conversion Kit (Tapered Lug) - 16" 5.56mm NATO Learn More
  5. Sig Sauer MCX Conversion Kit (Tapered Lug) - 9" .300 BLK

    Sig Sauer MCX Conversion Kit (Tapered Lug) - 9" .300 BLK

    Regular Price: $549.99

    Special Price $469.00


    Sig Sauer MCX Conversion Kit (Tapered Lug) - 9" .300 BLK Learn More
  6. Sig Sauer MCX Conversion Kit w/ 2-Stage Trigger - 9" .300 BLK

    Sig Sauer MCX Conversion Kit w/ 2-Stage Trigger - 9" .300 BLK

    Regular Price: $1,439.00

    Special Price $1,299.00


    Sig Sauer MCX Conversion Kit w/ 2-Stage Trigger - 9" .300 BLK Learn More
  7. Sig Sauer MCX Rattler AR15 Conversion Kit - 5.5" .300 Blackout

    Sig Sauer MCX Rattler AR15 Conversion Kit - 5.5" .300 Blackout

    Regular Price: $1,579.99

    Special Price $1,329.00


    Sig Sauer MCX Rattler AR15 Conversion Kit - 5.5" .300 Blackout Learn More
  8. Sig P226 9mm Caliber Exchange Kit 15rd

    Sig Sauer P226 9mm Caliber Exchange (X-Change) Kit

    Regular Price: $399.99

    Special Price $349.00


    The P226 9mm Caliber X-Change kit is compatible with virtually all existing P226 frames. You can convert your Sig Sauer P226 from .22LR, .40 S&W, or .357 Sig to 9mm with this conversion kit. Learn More
  9. Sig Sauer P226 9mm Caliber Exchange Kit w/ Romeo1 Reflex Sight
    Sig Sauer P226 9mm Caliber Exchange Kit w/ Romeo1 Reflex Sight Learn More
  10. Sig Sauer P226 RX Slide Assembly - 9mm
    Sig Sauer P226 RX Slide Assembly - 9mm. Romeo1 included. 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.
Conversion & Caliber X-Change Kits

Minimal Price: $ 239.00 239