Rock River Arms Completed Upper Receiver X-1 .223 Wylde 18 Inch Barrel 1-8 Twist 1/2-28 Threat Free-Float Handguard Brake Black
$676.59 at MidwayUSA · 2 stores
In stock Sale
Next Level Armament NLX556 AR15 556 NATO 16in Complete Upper Receiver Midlength 1-7 Twist Black
Next Level Armament · Upper Receiver
No ratings yetBest price
$665.00at OpticsPlanet
Out of stock Sale checked Oct 22, 2026
In stock now instead
- Rock River Arms Completed Upper Receiver X-1 .223 Wylde 18 Inch… $676.59at MidwayUSA
- Rock River Arms Completed Upper Receiver National Match A4 .223… $649.99at OpticsPlanet
- Retro Brn-601 5.56mm 20" Bbl Upper Receiver $719.99at Brownells
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| OpticsPlanet | $665.00Salechecked Oct 22, 2026 | Out of stock | Buy at OpticsPlanet |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
Similar upper receivers in stock
This part is out of stock at every store we track. These similar upper receivers are in stock, with today's prices.
Rock River Arms Completed Upper Receiver National Match A4 .223/5.56mm 20 Inch Barrel 1-8 Twist 1/2-28 Thread Free-Float Handguard w/Post Black
$649.99 at OpticsPlanet · 2 stores
In stock Sale
Retro Brn-601 5.56mm 20" Bbl Upper Receiver
$719.99 at Brownells
In stock Sale
Spikes Tactical .223 Rem/5.56 16" Barrel Complete Upper Assembly, Mil-Spec Phosphate Coated, Black Mid-Length
$598.50 at OpticsPlanet · 5 stores
In stock Sale
Spikes Tactical .223 Rem/5.56 16" Barrel Complete Upper Assembly, Mil-Spec Phosphate Coated, 9" Black Free Float BAR2 Rail
$743.40 at Kentucky Gun Co · 4 stores
In stock
Watchman .223 Wyde 16"bbl Complete Upper Receiver Black
$749.00 at Ammunition Depot · 3 stores
In stock
Price history
Dashed line = out of stock. Tracking since Oct 15, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| OpticsPlanet | $665.00 | $665.00 | $665.00 |
Since Oct 15, 2026.
About this part
The Next Level Armament NLX556 AR15 556 NATO 16in Complete Upper Receiver Midlength 1-7 Twist Black is an AR-15 complete upper receiver from Next Level Armament. One store lists it, OpticsPlanet at $665.00.
Fits and works with
- Caliber
- 5.56 / .223 · Shop matching ammo
- Bolt
- Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
- Gas system
- Mid-length · Handguards
- Barrel length
- 16" · Handguards
Specifications
- Manufacturer
- Next Level Armament
- Color
- Black
- Type
- Complete
- Platform
- AR-15
- Caliber
- 5.56 mm NATO
From the manufacturer
Next Level Armament NLX556 AR15 556 Nato 16in Complete Upper Receiver Midlength 1-7 Twist Black. Built with the best parts on the market complete upper comes with all the upgrades standard. Why pay less for inferior parts and pay more to upgrade later? Specifications for Next Level Armament NLX556 AR15 556 Nato 16in Complete Upper Receiver: Manufacturer: Next Level Armament Caliber: 5.56x45mm NATO Barrel Length: 16 in Gas System Length: Mid Length Barrel Twist Rate: 1-7 Finish: Anodized Color: Black Gun Model: AR-15 Fabric/Material: 7075 T6 Aluminum Handguard Length: 16 in Gun Type: Rifle Gun Make: AR Platform Weight: 0.75 lb Magazine Included: No Last Chance: Yes Package Contents: Next Level Armament NLX556 AR15 556 Nato 16in Complete Upper Receiver Roscoe Bloodline 16in Barrel NLX556 BCG w/ DLC NLX556 Ambidextrous Charge Handle NLA Billet Low Profile Gas Block NLA 13in Mlok Handguard NLX-5 Helix Flash Hider What firearm models does the manufacturer say Next Level Armament NLX556 AR15 556 Nato 16in Complete Upper Receiver is compatible with? The manufacturer suggests that Next Level Armament NLX556 AR15 556 Nato 16in Complete Upper Receiver is compatible with AR-15Next Level Armament NLX302: NLX556 AR15 556 Nato 16in Complete Upper Receiver Midlength 1-7 Twist Black
Rating
No ratings yet
Log in to rate this part.
Comments
Please log in to read and leave comments.