Daniel Defense 23-128-00275-047 DDM4V7 S 5.56 NATO 11.5" Bbl Complete Upper Receiver GroupDaniel Defenses 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