Geissele Upper Receiver Group, USASOC URG-I 11.5 inch CQBR "near clone" 2024 Geissele production

The new Close Quarter Battle Receiver is being released in the US Military and goes by a number of names, including a Mk18 upper receiver group version.  Geissele has produced an extremely limited number of what they call a URGI 11.5" upper.

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 Mk18 upper receiver.  This is new production, as reconfigured by Geissele in 2021.

The Mk18 started with the US Navy in 2001, as an answer to how to create a shortened M16 and M4 to use shipboard, and became a "knock the doors down" urban rifle, first being used by the US Navy SEALS during the start of the Global War on Terror, and then spread throughout SOCOM units, then to the US Marines, and finally to main Army units.  The latest evolution is known as the Mk18 Mod 3 originally by the USMC, and the CQBR Block 2 by the US Army.

Geissele, and Charlie's Custom Clones introduced the civilian version of the URGI for the M4A1 in 2018, and Geissele began to morph to a "near clone," and Charlie's and our sister design and build company, Potomac Armory to the "clone correct" versions of the URGI.  This is the latest URGI to be offered by Geissele.

Your choice of the Surefire 4-prong flash hider, or the Surefire 3-prong Warcomp flash hider (standard 3-prong 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 lots of slots for other accessories. T-markings are engraved on the rail but not painted white to help keep the rifle unobtrusive.

The flash hiders are not pin and welded, as there is no point with an 11-1/2 inch barrel, but they are secured with Rocksett, so they are not coming off.  Either flash hider will support a Surefire SOCOM suppressor, if you wish.

Details:

• Geissele Mil Spec forged M4 receiver with forward assist, shell deflector & ejection port cover
• Geissele Mk16 Super Modular Handguard with Geissele roll-marks and NSN number (now with 17-4 stainless QD inserts for sling connections)
• Geissele 11.5" CHF military spec CMV steel allow barrel with 1-7" rifling & 1/2"-28 TPI muzzle threads and carbine gas system, chrome-lined and exterior finished in phosphate
• Geissele Airborne military grade charging handle, standard in DDC, but black is available on request at time of order.
• Geissele Super Gas Block, black nitrided and pinned "bombproof" installation by Geissele
• Geissele Reliability Enhanced Bolt Carrier Group
• Surefire SOCOM 4-prong flash hider or the Surefire SOCOM 3-prong WarComp timed neutral, unless you ask us for a right hand Warcomp timing
• Manufacturer's Part Number (in 4-prong configuration) 08-315

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 production and the original URGI "near clone" that Geissele produced in 2018 and 2019?  There are some substantial differences that might lead the buyer to conclude this is another variant of the Super Duty.  The first 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 similar.  The BCG is now the commercial enhanced Geissele BCG, and the Mk12 gas block has been replaced by Geissele's low profile gas block. Aside from that, the two are very similar.  

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.