Geissele M4 CQB / Mk18 Upper Receiver Group (URGi)


Brand: Geissele
Product Type: Upper Receiver Group

Product Description

Geissele M4 CQB Upper Receiver Group (URGi)

What if you took a look around and Geissele made a smaller brother to the M4 URGi, and what if it happened to be 10.3" and someone called it a Mk18 Mod X.  We don't know either. 

Note:  October 26, 2018 -- Charlie's will be getting the first wave of Geissele CQB URGi's in early December.  We have posted the same price as the M4 14.5" URG, but prices will likely change.  In our discussions with the manufacturer, we are anticipating pricing very similar to the 14.5" URGi.  Sign-up to be notified.  When we have more specifics, we will post them, and take reservations for December delivery.

Each CQB 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.


  • TBD (more to come)

NFA warning:  The Stripped URGI upper receiver group without the pinned flash hider 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.

ITAR warning Charlie's Custom Clones 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.

Pictures courtesy of Geissele Automatics, Potomac Armory and Southern Cross, LLC

Note on pics:  What you see is prototype and some very poor PhotoShop, but you get the idea.  We do not have pics or exact specs of the upper to be produced.  Note:  at the time of this writing, the upper is not in production.  You should sign-up to be notified, so when we have all the specifics, we will notify you, and at that point, you can reserve yours. This will be a very small run of uppers, and after this run, we are told by the manufacturer that it will be a number of months before we get more.  


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