The US Army Special Operation Command is changing out the M4 upper receivers with this new improved model, which features the Geissele Mk16 DDC rail, and a Daniel Defense 14.5" Government profile mid-length barrel
This version is a stripped model, so it does not have a BCG or flash hider and charging handle.
Each URGI is fitted with the handguard Geissele designed specifically for USASOC, the MK 16 M-LOK™ Super Modular Rail handguard with a full-length Picatinny top rail and lotsa slots for other accessories. T-markings are engraved on the rail but not painted white to help keep the rifle unobtrusive.
Core receiver with forward assist, shell deflector & ejection port cover
Geissele MK16 Super Modular Handguard
Daniel Defense 14.5" CHF barrel with 1-7" rifling & 1/2"-28 tpi muzzle threads and mid-length gas system
Mid-length gas system with low-profile, stainless steel, Geissele nitrided gas block (pinned)
NFA warning:The Stripped URGI upper receiver does not meet the 16" minimum barrel length requirement, and requires registration and a tax stamp with the Bureau of Alcohol, Tobacco, Firearms and Explosives (BATFE) when assembled into a complete rifle. Please make sure you fully understand NFA and local laws.