The A3 FDE upper receiver assembly is made to mil-spec standards and includes a picatinny rail on the top, dust cover, and installed forward assist. The Stag 15 M-LOK SL Handguard series offers fore-end versatility for the AR15 platform like never before. Using the M-LOK attachment sections, you can customize the setup of your handguard. classic Stag AR-15 barrel chambered in 5.56 is setting the new standard for barrels. Coming in at 16 inches, requiring a mid-length gas system (not included), and sleek QPQ Black Nitride coating, this barrel will give you years of service in your next rifle build or as a replacement barrel for your existing AR 15.

 The handguard is blemished. Blemishes may include:

• Scratches

• Minor tool marks

• Flaws in finish

These products are fully functional. If you don't mind a slight imperfection, this is the perfect product for you. We do not accept returns on blemished products.

Upper Receiver Specs

Pivot/Takedown Pin Size: Standard small pin - .250"

Material: Forged 7075 T6 aluminum mil-spec with FDE Cerakote and a picatinny rail on top

Handguard Specs - BLEM

Length: 13.5"

Inner Diameter: 1.3"

Material: 6061 T6 Aluminum with a FDE Cerakote

Attachments: Accepts M-LOK attachments and rail sections

Barrel Specs

Caliber: 5.56 NATO | .223

Length: 16"

Diameter at the gas port: .750"

Barrel Threading: 1/2x28

Barrel Profile: Government Profile

Barrel Material: 4150 Chrome Moly Vanadium

Twist Rate: 1/7

Bore & Barrel Lining: Black Nitride

Barrel Coating: Black Nitride

Gas System: Mid-Length Direct Impingement