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AR-15 Upper Receivers

Shop for a variety of fully built AR-15 upper receivers with varying barrel lengths as short at 7" and as long as 16". We stock and sell uppers from Sig Sauer for the SIG M400, SIG 516, MCX, and generic AR-15.

Sig Sauer AR-15 style upper receivers are currently offered in 5.56mm NATO and .300 Blackout.  Other models and calibers will be addes as they become available.

  1. Sig Sauer 516 Gen2 10" 5.56mm Upper Receiver (Full Auto) - FDE
    Out of stock

    Sig Sauer 516 Gen2 10" 5.56mm Upper Receiver (Full Auto) - FDE

    Out of stock

    $820.00
    Sig Sauer 516 Gen2 Upper Receiver, 5.56mm, 10" BBL, Full Auto Capable - FDE Learn More
  2. SIG 516 Gen2 10
    Out of stock

    Sig Sauer 516 Gen2 5.56mm 10" Upper Complete Upper Receiver - Full Auto Capable

    Out of stock

    $899.00
    Sig Sauer 516 Gen2 Upper Receiver, 5.56mm, 10" BBL, Full Auto Capable Learn More
  3. Sig 516 Upper Assembly, 5.56mm, 14.5
    Out of stock

    Sig Sauer 516 Gen2 Upper Assembly - 14.5" 5.56mm NATO

    Out of stock

    $899.00
    Sig Sauer 516 Gen2 Complete Upper Receiver, 5.56mm NATO, 14.5" BBL - NFA Rules Apply Learn More
  4. Sig 516 Upper Assembly, 5.56mm, 14.5
    Out of stock

    Sig Sauer 516 Gen2 Upper Assembly - 14.5" 5.56mm NATO (Full Auto)

    Out of stock

    $899.00
    Sig Sauer 516 Gen2 Complete Upper Receiver, 5.56mm NATO, 14.5" BBL, Full Auto Capable - NFA Rules Apply Learn More
  5. Sig 516 Upper Assembly, 5.56mm, 7
    Out of stock

    Sig Sauer 516 Gen2 Upper Assembly - 7" 5.56mm NATO

    Out of stock

    $899.00
    Sig Sauer 516 Gen2 Complete Upper Receiver, 5.56mm NATO, 7" BBL - NFA Rules Apply Learn More
  6. Sig 516 Upper Assembly, 5.56mm, 7
    Out of stock

    Sig Sauer 516 Gen2 Upper Assembly - 7" 5.56mm NATO (Full Auto)

    Out of stock

    $899.00
    Sig Sauer 516 Gen2 Complete Upper Receiver, 5.56mm NATO, 7" BBL - NFA Rules Apply (Full Auto Capable) Learn More
  7. Sig Sauer 516 Gen2 Upper Assembly, 5.56mm, 16" Barrel
    Out of stock

    Sig Sauer 516 Gen2 Upper Assembly, 5.56mm, 16" Barrel

    Out of stock

    $899.00
    Sig Sauer 516 Gen2 Complete Upper Receiver, 5.56mm NATO, 16" BBL Learn More
  8. Sig 516 Upper Assembly, 5.56mm, 16
    Out of stock

    Sig Sauer 516 Gen2 Upper Assembly, 5.56mm, 16" Barrel

    Out of stock

    $999.00
    Sig Sauer 516 Gen2 Complete Upper Receiver, 5.56mm NATO, 16" BBL - Full Auto Capable Learn More
  9. Sig Sauer M400 Elite 9" .300 BLK Upper Receiver
    Out of stock

    Sig Sauer M400 Elite 9" .300 BLK Upper Receiver

    Out of stock

    $677.00
    Sig Sauer M400 Elite Upper Receiver, .300 BLK, 9" BBL Learn More
AR-15 Upper Receivers

Minimal Price: $ 677.00 677