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  1. 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 $1,219.99


    Sig Sauer MCX AR15 Conversion Kit - 16" .300 BLK Learn More
  2. 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 $1,329.99


    Sig Sauer MCX Rattler AR15 Conversion Kit - 5.5" .300 Blackout Learn More
  3. Sig 516 Upper Assembly, 5.56mm, 10

    Sig 516 Upper Assembly, 5.56mm, 10" Barrel

    $999.00

    Out of stock


    All upper assemblies are shipped with a recoil buffer and action spring. These components must be installed to ensure proper function of the SIG516 upper assembly on your AR-type lower receiver. Learn More
  4. Sig 516 Upper Assembly, 5.56mm, 7
    The SIG516 uppers allow operators to upgrade their current AR-15/M16/M4-type rifles from direct gas impingement systems to the SIG SAUER® advanced short-stroke pushrod system. Learn More
  5. Sig Sauer 516 Gen2 16" Full-Auto Upper Receiver
    Sig Sauer 516 Gen2 Upper Receiver, 5.56mm NATO, 16" BBL, Full Auto Capable Learn More
  6. Sig 516 Upper Assembly, 5.56mm, 14.5
    Sig Sauer 516 Gen2 Complete Upper Receiver, 5.56mm NATO, 14.5" BBL - NFA Rules Apply Learn More
  7. Sig 516 Upper Assembly, 5.56mm, 16
    The SIG516 uppers allow operators to upgrade their current AR-15/M16/M4-type rifles from direct gas impingement systems to the SIG SAUER® advanced short-stroke pushrod system. Learn More
  8. SIG 516 Upper Complete 10
    Sig Sauer 516 Complete Upper Receiver, 5.56mm, 10" BBL, Full Auto Capable Learn More
  9. SIG 516 Gen2 10
    Sig Sauer 516 Gen2 Upper Receiver, 5.56mm, 10" BBL, Full Auto Capable Learn More
  10. Sig Sauer M400 16" .300 BLK Upper Receiver

    Sig Sauer M400 16" .300 BLK Upper Receiver

    $599.00

    Out of stock


    Sig Sauer M400 AR-15 Upper Receiver, .300 BLK, 16" BBL, Magpul MOE Handguard Learn More

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Upgrade your rifle with a new M400, 516, or MCX Upper Receiver!
Upper Receivers

Minimal Price: $ 289.00 289