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This charge is to assemble a barreled upper will only include the following:

  1. All items purchased must be purchased from MAS Defense. We cannot install "your" parts per our insurance company.
  2. All items purchased to complete your barreled upper must be purchased at the same time including this assembly fee.
  3. All items purchased must be "In Stock" at the time of purchase.
  4. If any of the above is not followed you agree to forfeit this fee.

Please, contact us with any questions BEFORE you place this order.  A approval code is needed.


Thank You,

MAS Defense

  • Item #: BUASS
  • Condition: New


Price: $39.99
Availability: Out-of-Stock
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