DD DDM4 v1 URG Upper Receiver

Mil-Spec upper receiver with indexing marks and M4 feed ramps. Chrome Moly Vanadium steel barrel is cold hammer forged with 1:7 inch twist, M4 Profile, chrome lined, MP tested and Mil-Spec heavy phosphate coated. Front sight base CNC machined from 4140 steel and salt bath Nitride finished, carbine length, direct impingement. Daniel Defense Flash Suppressor. M16 profile bolt carrier group, Mil-Spec MP Tested, chrome lined, properly staked gas key. Daniel Defense A1.5 fixed rear sight is CNC Machined from 6061-T6 aluminum and Type III Hard Coat Anodized. Daniel Defense DDM4 Rail 12.0 FSP. Daniel Defense Vertical Grip, Glass Filled Polymer with Soft Touch Overmolding. Three low profile ladders made from Santoprene, heat resistant to 300° F. Made in the USA.