MAS Defense is committed to providing you 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. We strive to meet all of your needs and hope to become your one and only tactical weapon store. Contact us directly with any questions or to discuss your build.
All of our inventory is live data. If a part shows in stock, we have it in stock. We do not believe in "Back Ordering" parts and will NEVER sell any part that we do not have in stock. Barreled Uppers are built to order. Parts will ship in approximately 1-2 business days. Barreled Uppers will ship in approximately 3 business days. Local Pick Up is available in Charlotte. We do ask that you call before stopping by as we are not a "come in and browse shop".
Please click the links above or to the right to shop.
- 10.5" 300 Blackout 1x8 Chrome Moly Barrels IN STOCK - $149.99
- NP3 Technology Bolt Carrier Group (No Lube) - $149.99
- 10.5" .223 Wylde 1x9 HBAR Barrels - $129.99
- 16" 5.56 1x9 HBAR Barrels - Cosmetic Blems $99.99
- Barreled Uppers available in any configuration. Please call to discuss.
- Check out "Working Mans Parts" for discounted blems.
New Parts Added
- WMD M16 Profile Nickel Boron Bolt Carrier Group
- Yankee Hill Machine AR15 Profile Bolt Carrier Group
- Slick Side Sport Upper Receivers - No Assist or Door
- 10.5" .223 Wylde HBAR in 1x7 and 1x9 Barrels
- 14.5" 5.56 1x7 M4 Contour Barrels
- 16" 5.56 4142 Hardened Steel Socom Midlength 1x7 Barrels
- 16" 300 Blackout 1x8 Heavy Barrels
- 16" 300 Blackout 1x8 Mid Weight Melonite Nitride Barrels
- 20" 5.56 1x9 Chrome Moly Steel HBAR. Rifle Gas System.
- Seekins Billet Upper SP223 Upper Receivers