PRODUCT DESCRIPTION PRODUCT SPECIFICATIONS DDM4A1 5.56MM FDE 14.5" NM Capacity: 0 Model: M4A1 Finish: Type III Hard Coat Anodized Action: Semi-Auto Barrel Length: 14.5" M4 Profile (16" OAL) Rate of Twist: 1-in-7" Manufacturer: Daniel Defense UPC: 815604015950 Color: Collapsible / Folding Stock Daniel Defense Soft Touch Caliber: 223 Rem | 5.56 NATO