MAS Defense is committed to providing "Quality Parts at Reasonable Prices!" Our foundation is built on excellent customer service, honesty and integrity. These simple guidelines are what has made MAS Defense the preferred company it is today.
Thank you for your business and support!
Team MAS Defense
Parts ship in approximately (1-3) BUSINESS days. Barreled Uppers ship in approximately (2-4) BUSINESS days. Due to the high volume of orders, we cannot cancel, modify, edit or combine orders after they are placed. E-mails can take 24-48 hours to respond to.
All of our inventory is LIVE DATA. If a part shows in stock, we have it in stock. We do not "Back Order" parts. Barreled Upper Orders can not be changed or modified in any way after they have been placed. Please contact us BEFORE you place an order with any questions.
Due to increased fraudulent activity, customers with different billing and shipping addresses or credit card names will be required to submit a copy of their drivers license to confirm their identity. Once confirmed, customers will not have to resubmit on future orders.