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Jacob Grey Firearms Ultralight 5.56 NATO Complete Upper Assembly 556N13ULCUA Caliber: 5.56x45mm NATO, Overall Length: 22.5 in, 15% Off w/ Free Shipping
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Jacob Grey Firearms Ultralight Complete Upper Assembly, 5.56 NATO, 13in, Black, 556N13ULCUA
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Jacob Grey Firearms Ultralight Complete Upper Assembly, 5.56 NATO, 13in, Black, 556N13ULCUA
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Jacob Grey Firearms Ultralight Complete Upper Assembly, 5.56 NATO, 13in, Black, 556N13ULCUA
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Jacob Grey Firearms Ultralight Complete Upper Assembly, 5.56 NATO, 13in, Black, 556N13ULCUA
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Jacob Grey Firearms Ultralight Complete Upper Assembly, 5.56 NATO, 13in, Black, 556N13ULCUA
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Jacob Grey Firearms Ultralight Complete Upper Assembly, 5.56 NATO, 13in, Black, 556N13ULCUA
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Jacob Grey Firearms Ultralight Complete Upper Assembly, 5.56 NATO, 13in, Black, 556N13ULCUA
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Questions & Answers
Customer Reviews
Helpful Positive Review
I don’t normally take the time to do a review but I felt compelled. I purchased the 16” when it was on sale. This is Tier 1 quality @ a great price point. We we’re getting great groups out of the box. I only have about one hundred rounds through it. ...
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3/3 found this helpful
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Helpful Positive Review
I love this complete upper receiver. you guys are seriously missing out. comes with bcg and charging handle I’m so happy with this birthday gift of mine for myself. it doesn’t come with a forward assist which i don’t mind. i got the 16” 5.56 model. d...
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1/1 found this helpful
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Helpful Negative Review
This URG has given more problems and joy. Failure to feed issues from day one. RMA'ed but still having issues. The same lower receiver/mags/ammo has had zero issues on a different upper. I would love to give this company the benefit of the doubt, bu...
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1/1 found this helpful
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Most Recent Reviews
from day 1 I've had issues with the 13 inch. 1. gas coming out the muzzle due to the muzzle having ports inside the hand guard, flood the handguard with gas pushing it back to the shooters face; every shot feels super hot on your forward hand. 2nd is...
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Most Recent Reviews
Love the upper receiver, I wish the upper portion was wide enough for MLOK inserts. Which there are ways around that by purchasing Kinetic Development Group picatiny rail mounts. Very good quality overall, nothing bad to say.
- Caliber:
- 5.56x45mm NATO
- Overall Length:
- 22.5 in
- Barrel Length:
- 13 in
- Barrel Profile:
- Government
- Gas System Length:
- Carbine Length
- Barrel Twist Rate:
- 1-7
- Threads per Inch:
- 1/2x28
- Handguard Type:
- Free-Float
- Muzzle Device:
- Brake
- Finish:
- Type III Class 2 Hardcoat Anodized
- Color:
- Black
- Handguard Length:
- 13 in
- Condition:
- New
Code: 4M6-URC-GJUN1-556N13ULCUA
MPN: 556N13ULCUA
UPC: 850040696011
List: $869.00Save 15%
$739.99
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OP Bucks$17.68
Product Info for Jacob Grey Firearms Ultralight 5.56 NATO Complete Upper Assembly
The Jacob Grey Ultralight Complete Upper Assembly was designed with the next generation AR-15 in mind. This AR-15 complete upper assembly is built around the 7075-T6 billet upper receiver specifically machined and cut in areas where excess material was unnecessary and areas that see excess use and wear, reinforced and strengthened to give a sleek, refined look, without losing the classic lines of the AR-15 platform. It comes standard with the JG designed free float 7-sided M-LOK hand-guard that is also lightweight and leaves plenty of room for customization or the addition of numerous accessories available for the AR-15 platform. The barrel is chambered in 5.56 NATO with a 1:7 twist rate. The barrel is machined from 4150 chrome moly steel and black Nitride finished for corrosion resistance and accuracy. Each barrel is individually head-spaced to the Carpenter 158 bolt. Combined with the 8620 steel carrier and black Nitride finish, this complete upper assembly is extremely reliable and smooth shooting.
DISCLAIMER: Firearm specifications are subject to change at any time based on availability and supply chain shortage.
Specifications for Jacob Grey Firearms Ultralight 5.56 NATO Complete Upper Assembly:
| Manufacturer: | Jacob Grey Firearms |
| Caliber: | 5.56x45mm NATO |
| Overall Length: | 22.5 in |
| Barrel Length: | 13 in |
| Barrel Profile: | Government |
| Gas System Length: | Carbine Length |
| Barrel Twist Rate: | 1-7 |
| Threads per Inch: | 1/2x28 |
| Handguard Type: | Free-Float |
| Muzzle Device: | Brake |
| Finish: | Type III Class 2 Hardcoat Anodized |
| Color: | Black |
| Fabric/Material: | Aerospace Aluminum |
| Gas Block Journal Size-Diameter: | .075 in |
| Handguard Length: | 13 in |
| Handguard Style: | Round Rail |
| Gun Rail: | M-LOK |
| Gun Type: | Rifle |
| Gun Make: | AR Platform |
| Gun Model: | AR-15 |
| Weight: | 7.7 oz, 4 lb |
| Condition: | New |
| Barrel Material: | Chrome Moly |
| Gas Block Journal Size-Length: | 1.9 in |
| Bolt Carrier Group Included: | MIL-SPEC |
| Magazine Included: | No |
| Charging Handle Included: | MIL-SPEC |
| Last Chance: | Yes |
| Mount Type: | M-LOK |
Features of Jacob Grey Firearms Ultralight 5.56 NATO Complete Upper Assembly
- Compatible with most aftermarket/OEM handguards featuring indexing tabs
- Billet 7075-T6 aerospace aluminum
- Jacob Grey lightweight design
- M4 feed ramps
- Machined T-marks
- Laser engraved logo
- MIL-A-8625F Type III Class 2 hardcoat anodized flat black finish
- Compatible with MIL-SPEC AR upper receiver parts
- JG ULTRALIGHT Handguard
Package Contents:
- Jacob Grey Firearms Ultralight 5.56 NATO Complete Upper Assembly
Jacob Grey Firearms Ultralight 5.56 NATO Complete Upper Assembly Orderable Models
List of Orderable Models
- Jacob Grey Firearms Ultralight Complete Upper Assembly, 5.56 NATO, 13in, Black, 556N13ULCUA , MPN: 556N13ULCUA , UPC: 850040696011 , Code: 4M6-URC-GJUN1-556N13ULCUA
Jacob Grey Firearms Ultralight 5.56 NATO Complete Upper Assembly Unavailable & Discontinued Models
List of Unorderable Models
- USED, Jacob Grey Firearms Ultralight Complete Upper Assembly, 5.56 NATO, 13in, Black, 556N13ULCUA , MPN: 556N13ULCUA-EDEMO , Code: 4M6-URC-GJUN1-556N13ULCUA-EDEMO-RE-B
- Jacob Grey Firearms Ultralight Complete Upper Assembly, 5.56 NATO, 7.5in, Black, 556N75ULCUA , MPN: 556N75ULCUA , UPC: 850040696035 , Code: 4M6-URC-GJUN1-556N75ULCUA
- Jacob Grey Firearms Ultralight Complete Upper Assembly, 5.56 NATO, 10.5in, Black, 556N105ULCUA , MPN: 556N105ULCUA , UPC: 850040696028 , Code: 4M6-URC-GJUN1-556N105ULCUA
- Jacob Grey Firearms Ultralight Complete Upper Assembly, 5.56 NATO, 16in, Black, 556N16ULCUA , MPN: 556N16ULCUA , UPC: 850040696004 , Code: 4M6-URC-GJUN1-556N16ULCUA
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