An M4 feed ramped and indexed upper receiver built to military standards. Type III hard coat anodized 7075-T6 aluminum that has been CNC machined. The carbine-length, pinned, the low-profile gas block has a Mil-Spec strong phosphate coating and is CNC machined from 4140 hardened steel.

Daniel Defense M4A1 Flat Dark Earth

Mil-Spec upper receiver with indexing marks and M4 feed ramps. CNC machined of 7075-T6 aluminum and Type III hard coat anodized. Pinned low profile gas block is CNC machined of 4140 hardened steel, Mil-Spec heavy phosphate coating, carbine length, direct

Daniel Defense M4A1 Flat Dark Earth

• UPC Code: 815604016612
• Manufacturer: Daniel Defense
• Manufacturer Part #: 23-004-13150
• Model: M4A1
• Type: Upper
• Caliber: 223 Rem
• Caliber: 556NATO
• Barrel Length: 16″ (14.5″ with Pinned Brake)
• Finish/Color: Flat Dark Earth
• Accessories: M4 12.0 Rail
• Type of Barrel: 1:7
• Subcategory: Upper Receivers