Geissele URG-I, USASOC "near clone" 14.5" Upper Receiver Group - 2021 Production

$1,119.95 - $1,299.25
limited availability, by invitation only when registered to be notified to order
Extremely Limited Production and Availabilty:
note the specifications, which have changed


Geissele Upper Receiver Group, USASOC URG-I "near clone" 2021 production


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 14.5" Government profile mid-length barrel

This model is the Geissele near clone correct upper.  This is Geissele's commercial production of what the US Army at USASOC is using as its new M4A1 upper receiver.  This is new production, as reconfigured by Geissele in 2021.

For more than 50 years the famed silhouette of the M16/M4 has only had one major and several minor changes. Barrel lengths and buttstocks have changed, but more or less the evolution of America’s right arm has proceeded apace with each generation of warrior making her their own. In that time, the sight of the M16/M4 in the competent grasp of young Americans has meant hope to countless millions of people around the globe.

With the advent of the USASOC URGI, that quintessentially American silhouette has changed forever. The Geissele Super Modular Rail MK 16 handguard, hammer forged barrel, and mid-length gas system work in concert for a package that delivers measurable increases in hit probability. Designed to take the full rigors of the new M855A1 (AB57) ammunition, the USASOC URGI also takes full advantage of its capabilities. Once the USASOC URGI is installed on an existing system, it essentially makes for a brand new weapon. The USASOC URGI is a near-clone upper receiver group currently going into service with USASOC. 

Your choice of the Surefire 4-prong flash hider, or the Surefire 3-prong Warcomp flash hider (Warcomp closed tine available upon request)

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.

This is Geissele factory assembled and comes in a new Geissele factory box.  If you choose the Surefire 4-prong, it is assembled by Geissele.  If you choose the Warcomp, it will be attached by an outside shop, contracted by Charlies.  I must tell you, the pin and weld job that Charlie's shop does is better than Bill's, but that is a fight for another day.  


  • Mil Spec M4 receiver with forward assist, shell deflector & ejection port cover
  • Geissele Mk16 Super Modular Handguard with Geissele roll-marks
  • Geissele 14.5" CHF barrel with 1-7" rifling & 1/2"-28 tpi muzzle threads and mid-length gas system
  • Geissele Airborne DDC charging handle
  • Geissele Super Gas Block, black nitrided and pinned "bomb proof" installation
  • Mil Spec M16 bolt and carrier group, contracted by a tier 1 military contractor by Geissele
  • Geissele Super 42 braided wire carbine spring and Geissele branded H-1 buffer (as an added bonus)
  • Surefire SOCOM 4-prong flash hider or the Surefire SOCOM 3-prong WarComp pinned and welded in place

Some may remember the original offering from Geissele in 2018 included a 30% off coupon from Surefire for both a SOCOM suppressor and a Surefire flashlight.  Those coupons are no longer offered.

What, you ask, is the difference between this newer 2021 produciton and the original URGI "near clone" that Geissele produced in 2018 and 2019?  Well, the first thing is that as of this editing in March, 2021, Geissele has not yet shipped any of the newer version of the URGI.  The next difference is that Geissele has replaced the military spec Daniel Defense barrel that the US Army uses with a Geissele produced barrel, that is very similiar.  Aside from that, the two are very similar.  

The 2018 / 2019 URGI is listed here, while supplies last:  Geissele URGI original near clone, new old stock.

Note:  if you select WarComp, we time this as neutral (ports pointed up).  If you want it timed to the starboard side, please make sure to put that in the comments.  Both are correct.  Our gunsmiths prefer ports timed up.

NFA Comment:  The 14.5" barrel is pinned and welded to make the barrel length compliant with the National Firearms Act, and is not a short barreled upper.  Removal of the pinned flash hider will result in the upper being an NFA item, and is also not recommended, as it will cause damage to the threads of the barrel as well.

ITAR warning:  This item may only be purchased and shipped to US Persons within the USA.  This is a military item, which is restricted from export without US Government permission.