Daniel Defense’s DDM4 V7S AR15 Style Upper Receiver Group was designed to deliver maneuverability, reliability, accuracy, and comes packed with Daniel Defense exclusive features. It comes equipped with a carbine length gas system for smooth and reliable cycling and reduces perceived recoil. The bolt carrier group features an M16 profile, is MIL-SPEC MP tested, chrome lined and is outfitted with a properly staked gas key. In addition this upper receiver group utilizes a Grip-N-Rip charging handle, a Daniel Defense Flash suppressor, and a glass filled polymer vertical grip. Features: Low profile carbine length gas system Grip-N-Rip charging handle Daniel Defense Flash Suppressor Daniel Defense MFR handguard with M-LOK attachment points Mil-Spec upper receiver Daniel Defense DDM4V7 S 5.56 NATO 11.5" Bbl Complete Upper Receiver Group 23-128-00275-047