United States Army Special Operations Command (USASOC) Upper Receiver Group, Improved (URG-I) and Naval Special Warfare (NSW) Upper Receiver Group, Improved (URG-I)

This thread is for pictures of and discussion about issued URG-Is and clones. That doesn't include "inspired by" rifles, "my take on an URG-I" rifles, Geissele Duty rifles, Geissele Super Duty rifles, or anything else. Please post those pictures here, here, or here.

Parts list for issued USASOC URG-I and NSW URG-I rifles:

Lower Receiver Group

lower receiver- M4A1

receiver extension- standard M4/M4A1

action spring- standard M4/M4A1

buffer- H2

grip- standard M16A2/M16A3/M16A4/M4/M4A1

stock- Type I, Type IIA, Type IIB, Gen 1 SOPMOD

trigger- Geissele SSF- P/N 05-102

selector- Colt/Manufacturing Support Industries full auto ambi- P/N SP401017

USASOC 14.5" Upper Receiver Group, Improved- from conversion kit NSN 1005-01-671-3911

upper receiver- standard M4/M4A1

bolt carrier group- standard M16A4/M4/M4A1

charging handle- Geissele Airborne Charging Handle in Desert Dirt Color with subdued markings- P/N 05-664S- NSN 1005-01-672-4803

barrel- Daniel Defense 14.5" mid length "GOV" profile with .076" gas port- P/N 07-077-07308

gas block- Daniel Defense pinned gas block which only comes on their rifles and URGs or barrel assemblies. Not available separately.

gas tube- Daniel Defense mid length- P/N 04-013-18034

hand guard- Geissele 13.5" MK16 in Desert Dirt Color- P/N 05-650S- NSN 1005-01-672-4794 (MK16s with no markings, laser P/N markings, and stamped NSN markings have all been seen in pictures)

M-LOK rail section- 3 ea Magpul 7 slot aluminum- P/N MAG582-BLK

M-LOK sling mount- Magpul QD- P/N MAG606-BLK

muzzle device- SureFire 4 prong flash hider- P/N FH556RC

suppressor- SureFire SOCOM in Dark Earth- P/N SOCOM556-RC

rear BUIS- Matech

front BUIS- Knight's Armament Front Flip Sight in Taupe P/N 99051

NSW 14.5" Upper Receiver Group, Improved- from conversion kit NSN 1005-01-671-3911

upper receiver- standard M4/M4A1

bolt carrier group- standard M16A4/M4/M4A1

charging handle- Geissele Airborne Charging Handle in Desert Dirt Color with subdued markings- P/N 05-664S- NSN 1005-01-672-4803

barrel- Daniel Defense 14.5" mid length "GOV" profile with .076" gas port- P/N 07-077-07308

gas block- Daniel Defense pinned gas block which only comes on their rifles and URGs or barrel assemblies. Not available separately.

gas tube- Daniel Defense mid length- P/N 04-013-18034

hand guard- Geissele 13.5" MK16 in Desert Dirt Color- P/N 05-650S- NSN 1005-01-672-4794 (MK16s with no markings, laser P/N markings, and stamped NSN markings have all been seen in pictures)

M-LOK rail section- 2 ea Magpul 7 slot aluminum- P/N MAG582-BLK

M-LOK light switch mount- Magpul Tape Switch Mountig Plate- P/N MAG631

M-LOK rail covers- 2 sets Geissele Rail Panel, Desert Dirt Color- P/N 04-428S

M-LOK sling mount- Magpul Paraclip- P/N MAG607-BLK

muzzle device- SureFire 4 prong flash hider- P/N FH556RC

suppressor- SureFire SOCOM in Dark Earth- P/N SOCOM556-RC

rear BUIS- Matech

front BUIS- Knight's Armament Front Flip Sight in Taupe P/N 99051

USASOC 11.5" Upper Receiver Group, Improved- from conversion kit NSN 1005-01-684-1906

upper receiver- standard M4/M4A1

bolt carrier group- standard M16A4/M4/M4A1

charging handle- Geissele Airborne Charging Handle in Desert Dirt Color with subdued markings- P/N 05-664S- NSN 1005-01-672-4803

barrel- Daniel Defense 11.5" "GOV" profile- P/N 07-077-07108

gas block- Daniel Defense pinned gas block which only comes on their rifles and URGs or barrel assemblies. Not available separately.

gas tube- Daniel Defense carbine length- P/N 04-013-01009

hand guard- Geissele 10.5" MK16 in Desert Dirt Color- P/N 05-1073S

M-LOK rail section- 3 ea Magpul 7 slot aluminum- P/N MAG582-BLK

sling mount- Magpul QD- P/N MAG606-BLK

muzzle device- SureFire 4 prong flash hider- P/N FH556RC

suppressor- SureFire SOCOM in Dark Earth- P/N SOCOM556-RC

rear BUIS- Matech

front BUIS- Knight's Armament Front Flip Sight in Taupe

NSW 11.5" Upper Receiver Group, Improved- from conversion kit NSN 1005-01-671-3911

upper receiver- standard M4/M4A1

bolt carrier group- standard M16A4/M4/M4A1

charging handle- Geissele Airborne Charging Handle in Desert Dirt Color with subdued markings- P/N 05-664S- NSN 1005-01-672-4803

barrel- Daniel Defense 11.5" "GOV" profile- P/N 07-077-07108

gas block- Daniel Defense pinned gas block which only comes on their rifles and URGs or barrel assemblies. Not available separately.

gas tube- Daniel Defense carbine length- P/N 04-013-01009

handguard- Geissele 10.5" Mk16 in Desert Dirt Color- P/N 05-1073S

M-LOK rail section- 2 ea Magpul 7 slot aluminum- P/N MAG582-BLK

M-LOK light switch mount- Magpul Tape Switch Mountig Plate- P/N MAG631

M-LOK rail covers- 2 sets Geissele Rail Panel, Desert Dirt Color- P/N 04-428S

M-LOK sling mount- Magpul Paraclip- P/N MAG607-BLK

muzzle device- SureFire 4 prong flash hider- P/N FH556RC

suppressor- SureFire SOCOM in Dark Earth- P/N SOCOM556-RC

rear BUIS- Matech

front BUIS- Knight's Armament Front Flip Sight in Taupe P/N 99051

10.3" Upper Receiver Group, Improved
NOT issued

Specs:

13.5" Mk16 mass- 419 g / 14.8 oz
14.5" barrel mass- 723g / 1 lb 8.1 oz
14.5" URG-I mass- 1.89kg / 4 lb 3 oz (14.5" RIS II URG with Govt profile barrel and same muzzle device is 2.00kg / 4 lb 7 oz)

10.5" Mk16 mass- 353 g / 12.5 oz
11.5" barrel mass - 620g / 1 lb 5.9 oz
11.5" barrel with gas block mass- 581g / 1 lb 4.5 oz
11.5" URG-I mass- 1.72kg / 3 lb 13 oz (10.3" RIS II URG with Govt profile barrel and same muzzle device is 1.71kg / 3 lb 12 oz)

9.3" Mk16 (not issued, only included for reference) mass- 335 g / 11.8 oz
10.3" barrel (not issued, only included for reference) mass - 525 g / 1 lb 2.5 oz
10.3" barrel with gas block (not issued, only included for reference) mass- 563 g / 1 lb 3.9 oz
10.3" URG-I (not issued, only included for reference) mass- 1.64kg / 3 lb 10 oz (10.3" RIS II URG with Govt profile barrel and same muzzle device is 1.71kg / 3 lb 12 oz)

Known upper receivers used on issued 14.5" URG-Is:
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Known BCGs used in 14.5" URG-Is:
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14.5" URG-I gas blocks:
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If you have any pictures that show issued upper receiver or BCG markings, please post them.

If you have any pictures of gas blocks on post testing issued URG-Is that are different, please post them.

Fair enough

Does the NX8 come with a cover for the elevation knob (like in the pic)?

I think it has an exposed top turret. Atacr is capped.

There is a NX8 in the EE that is a Mil/LE version that is capped.

Never knew there was a mil version! Thanks I got something I'll have to look into!

Most of these are probably reposts but there is a lack of photos.

Yeah - that explains it.

I was looking at it and thinking, why does that not look like any of the NX8s I've seen for sale online anywhere?

@phlegm

Thank you. I missed the question.

These are great caps. Definitely the most solid built ones I've found. They seal great and keep all the dirt out, mud, etc out.

Apologies if this has already been covered, but regarding the Vortex 1-6 Razors we're seeing in the wild - are these just personal purchases? Or are they issued along with the guns?

And correct me if I'm wrong, but the ATACR 1-8 (in FDE) will be the new standard issued SOCOM 5.56 carbine optic?

Both personal and unit purchases.

There was the SVPS competition to make it official, but the SIG optic "won" the SFP.

Nightforce won the FFP version. It's the ATACR 1-8 in FDE with some other differences.

Trying to decide what LPVO to mount on my URGI build, stuck between the ATACR 1-8, NX8 1-8, and the new Razor Gen III 1-10. Not gonna lie, definitely leaning toward the Vortex, but I also want that NF logo. Anyone prefer one over the other?

Well it's a clone thread, so ATACR. Then NX8

atacr is most clone correct, NX8 is next. I'm sure someone out there has put a vortex 1-10 on it since strike eagles have made it onto block 2s, but there haven't been pictures confirming it.

Part of me wants to hold out and see if Nightforce ever releases the ATACR 1-8 in their .mil contract FDE to us civilians.

Just afraid that day may never come though.

Same here. That ATACR in FDE looks sexy as hell.

I hope they sell it. I hope my credit card can handle it.

If they ever released it in FDE with the ultramount, a whole lot of us are going to swing for them

Agreed but black version are also out there.

Burned some Benjamin’s today. Attached File

Still no confirmed 11.5 URGI's in the wild?

That looks great.

What light is that?

X300V

Slightly off topic; but I'm willing to bet the freshly rebuilt M4 URGI came from this MK18 spotted in Afghanistan. Love the modern brushstroke camo

That or atleast the same unit.

My apologies, I'm sure I missed it somewhere in the last few pages, but what weapon light is that? It appears to be pretty common in these photos. Thanks!

Don't get your hopes up on owning one...

Insight WMX200

Thanks. Only $775 if Thoroughbred ever gets any in!

Insight WMX 200

An "intense 200 lumens of quick threat detection?" Is it really only 200 lumens in the visible setting?

Yes.
200 lum max for 2 hours with 5 lum map light. IR capable.

Keep in mind Wmx's are used in conjunction with FP Peq15/LA5's. They are not intended to white light targets at distance.

Lol

Anyone here know what aimpoint micro offset mount they are using on these?

Arisaka

Thank you Sir!

Ah, a painted one.

I'll likely do that to my black one.

Thoroughbred wmx run was a deal of the century. Not likely to happen again. Light is discontinued, your going to pay 750-1500. Wills optics has a few in stock at 14-1500$.

Attached File

Allot of su-279 action in this one.

Attached File

Have a urg-i upper arriving in the next few weeks - never thought about mounting my 3-18 Mk6 on it, but it's interesting to see that setup in the wild.

Think it's the first time seeing one on a URG-I

FINALLY! After a year of being on the call when in stock list, I finally got to it in time... almost two weeks later it showed up after a brief detour to Alaska usps is extra fukky lately.

Perfect timing the 4P I found here on the EE came the same day... now off to pin and weld and my URGI can graduate from near clone status.
***Been rocking a Rosco Bloodline and a BE Meyers 249ASR so I could use my SiCo Can***
I’m on the fence what upper to use. I could stick to the Muller, but it fits my lower a little to tight... and pulling the TD pin is a bitch.
my options are a rattle canned Cage Colt, a surplus Cerro Colt, or one of those FN Cage/ raised (not colt) C uppers that we’re floating around a couple months ago.  I like the idea of a slightly salty receiver as most of the ITW URGI’s have a fair amount of sodium content.  Anyone seen those FNs ITW?

I'd go with the Cerro Colt since I haven't seen the others in pictures.

Don't have it pinned without the barrel nut on it.

Those have not been fielded yet, usually ends up being 18-24 months once a contract is done before the item is actually fielded.

The issued 1-8 doesn’t have the same reticle, it has a BDC that can be used for 5.56 and 7.62 with different zeroing points for each.

I thought  @Combat_Diver  had mentioned building URGI’s on the FN Cage/Odd C/Anchor Harvey uppers
I just found it again HERE
Which is good because I’d rather save the Cerro for another block 1 or Mk18 build...something with fewer “Correct” upper receiver options.

..ya forgetting the bbl nut and having to butcher a 4P would be bad.

Apparently they've been in the field for a few years now. Here's a picture posted in a FB group (This photo isn't mine):

We haven’t received any of them yet, haven’t heard from any buddies that have gotten them yet either. Could be a personally purchased upper. I got a lot of buddies that bought the URGI uppers when those came out.

I ended up ordering a stripped DD 11.5 barrel without the gas block, and then prematurely bought a G gas block. Then I read this whole thread lol.

Optics Planet has 11.5 barrels with the LPGB in stock CAO 1110 hrs today. Everything is all good now lol.

Been a while since I popped in. Any news on what USASOC is doing for CQBR uppers? They keeping the current RIS II equipped, changing to a new one or doing away with it?

Yeah I’m not aware of any making it out en masse.