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.
When I first saw this announcement at shot show 2018 and they first showed this upper I instantly fell in love, i bought the stripped version to throw on my Daniel Defense mk18 upper on a forum 4 SBR. The myth that you must in form the atf if you have multiple upper of multiple lenthes and swap them out since it’s a “temporary” change. So yes I looked this up and was pleased to read that you can do this as long as you can convert it back into its original form so I keep my mk18 upper with it in my gun bag at the range have just swapping the uppers back and fourth. Let’s get into the genius of the design of this upper, first off it’s much lighter than the previous block 2 uppers for the m4a1. The rail is thin and comfy yet has this robust feeling to it.
Range time, since I can’t afford a vortex 1-6 or night force 1-8, so I installed my Trijicon mro red dot sight. I sent out my target to 30 yards threw my g33 manifyier on the gun so I could zero in my red dot a little bit easier once I had it dialed in it was stack round after round into very nice groupings. When I brought the target back in I was shocked on these groupings. The mid length gas system paired with the dd 14.5 mid length gas system works together for a smooth shooting, and lighter recoil then my fsp block 2 build.
What I used- sure fire 3 prong (sf3p)
Bcm changing handle (waiting for the geiselle airborne to arrive), a colt Bcg, Daniel Defense sbr form 4 lower, geiselle flat face 2 stage 3 gun trigger with the 4.5 trigger spring the 3.5 was to light for me. I know this belongs on a colt lower I’m awaiting a stamp for my colt lower lol. I can’t explain how well the hand guard looks and feels it’s not thin and gritty say like a bcm recce 16 rail, it’s smooth and the hard coat anodizing is hard to scratch up. I highly recommend this upper no matter what form you by!
I cannot wait untill the mk18 mod3 upper is realeased with this rail it’s definitely going to be purchased by me. If you purchase this upper it’s almost like owning a whole new gun that shoots soft and hits hard!!
Final thoughts, if you haven’t bought one yet or are thinking about it you will not be disappointed at all. Just remember your buying a military grade weapon that’s used by our top tier soldiers as the next generation m4 dont miss out on this opportunity to own a critical upgrade to the ar15 platform.
Pros light weight
Very smooth operation
Hammer forged barrel
Come with a geiselle black nitride low pro gas block!!
Cons Price (you pay for what u get worth it)
Hmmmm honestly there are no other cons only pros
Clone enthusiast,and collector whom knows to much about ar platform rifles.
Thx guys. Just what I needed, and you beat anyone else's prices, and had it-stock when I needed it. URGI is the way to go. First, about the upper, this is amazing awesome feel. Geissele rocks. Can I get more of the rail? William, thanks for the online help. Not sure why I could not order online. Love the Chat feature. Tell Charlie and Billy G. to make this in full frontal clone, and I am in, baby. Gimme mo, Gimme mo, Gimme mo.