+1-800-504-5897 Help Center Check Order Status
About Us Policies Reviews How To
Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.

Enjoy our FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

  • Entire Store
  • ...
  • Apparel & Footwear
  • Astronomy
  • Everything Else
  • Eyewear
  • Hunting Gear
  • Lab Equipment
  • Military Gear
  • Outdoor Gear
  • Photography Equipment
  • Police, EMS & Fire
  • Shooting
  • Sport Optics
  • Sports & Hobbies
TIP
Shopping Cart

Next Level Armament NLX556 AR15 556 Nato 16in Complete Upper Receiver NLX302 Caliber: 5.56x45mm NATO, Barrel Length: 16 in, $35.00 Off w/ Free S&H

Next Level Armament NLX556 AR15 556 Nato 16in Complete Upper Receiver, Midlength, 1-7 Twist, Black, NLX302
Next Level Armament NLX556 AR15 556 Nato 16in Complete Upper Receiver, Midlength, 1-7 Twist, Black, NLX302
Next Level Armament NLX556 AR15 556 Nato 16in Complete Upper Receiver, Midlength, 1-7 Twist, Black, NLX302
Next Level Armament NLX556 AR15 556 Nato 16in Complete Upper Receiver, Midlength, 1-7 Twist, Black, NLX302
1 of 3 images
Next Level Armament NLX556 AR15 556 Nato 16in Complete Upper Receiver, Midlength, 1-7 Twist, Black, NLX302
Next Level Armament NLX556 AR15 556 Nato 16in Complete Upper Receiver, Midlength, 1-7 Twist, Black, NLX302
2 of 3 images
Next Level Armament NLX556 AR15 556 Nato 16in Complete Upper Receiver, Midlength, 1-7 Twist, Black, NLX302
Next Level Armament NLX556 AR15 556 Nato 16in Complete Upper Receiver, Midlength, 1-7 Twist, Black, NLX302
3 of 3 images
Next Level Armament NLX556 AR15 556 Nato 16in Complete Upper Receiver, Midlength, 1-7 Twist, Black, NLX302

Tap Tap to Zoom

Government Export Restriction Government Export Restriction
Government Restriction Government Restriction
You May Also Like
Best Rated Magpul Industries PMAG GEN M2 MOE AR-15/M16/M4 Rifle Magazine, .223 Rem/5.56x45mm NATO, 30 Round, Black, 1 Pack, Polymer, MGMPI571BLK-30RD
Magpul Industries PMAG GEN M2 MOE AR-15/M16/M4 Rifle Magazine, .223 Rem/5.56x45mm NATO, 30 Round, Black, 1 Pack, Polymer, MGMPI571BLK-30RD
(59)
List: $24.99 $12.30 Save Up to 51%
Best Rated Magpul Industries PMAG GEN M3 AR-15/M16/M4 Rifle Magazine w/Capacity Window, .223 Rem/5.56x45mm NATO, 30 Round, Black, 1 Pack, Polymer, MGMPI556BLK-30RD
Magpul Industries PMAG GEN M3 AR-15/M16/M4 Rifle Magazine w/Capacity Window, .223 Rem/5.56x45mm NATO, 30 Round, Black, 1 Pack, Polymer, MGMPI556BLK-30RD
(54)
List: $32.43 $23.99 Save Up to 26%
Best Rated Magpul Industries PMAG GEN M3 AR-15/M16/M4 Rifle Magazine, .223 Rem/5.56x45mm NATO, 30 Round, Black, 1 Pack, Polymer, MGMPI557BLK-30RD
Magpul Industries PMAG GEN M3 AR-15/M16/M4 Rifle Magazine, .223 Rem/5.56x45mm NATO, 30 Round, Black, 1 Pack, Polymer, MGMPI557BLK-30RD
(35)
List: $30.36 $15.49 Save Up to 49%
Best Rated Magpul Industries PMAG GEN M3 AR-15/M16/M4 Rifle Magazine w/Capacity Window, .223 Rem/5.56x45mm NATO, 30 Round, Medium Coyote Tan, 1 Pack, Polymer, MAG556-MCT-30RD
Magpul Industries PMAG GEN M3 AR-15/M16/M4 Rifle Magazine w/Capacity Window, .223 Rem/5.56x45mm NATO, 30 Round, Medium Coyote Tan, 1 Pack, Polymer, MAG556-MCT-30RD
(54)
List: $32.55 $25.49 Save Up to 22%
Best Rated Magpul Industries PMAG GEN M3 AR-15/M16/M4 Rifle Magazine, .223 Rem/5.56x45mm NATO, 20 Round, Black, 1 Pack, Polymer, MAG560BLK-20RD
Magpul Industries PMAG GEN M3 AR-15/M16/M4 Rifle Magazine, .223 Rem/5.56x45mm NATO, 20 Round, Black, 1 Pack, Polymer, MAG560BLK-20RD
(25)
List: $30.79 $21.99 Save Up to 29%
Best Rated Magpul Industries PMAG GEN M3 AR-15/M16/M4 Rifle Magazine, .223 Rem/5.56x45mm NATO, 30 Round, Medium Coyote Tan, 1 Pack, Polymer, MAG557-MCT-30RD
Magpul Industries PMAG GEN M3 AR-15/M16/M4 Rifle Magazine, .223 Rem/5.56x45mm NATO, 30 Round, Medium Coyote Tan, 1 Pack, Polymer, MAG557-MCT-30RD
(35)
List: $29.95 $14.99 Save Up to 50%
Best Rated Magpul Industries PMAG GEN M3 AR-15/M16/M4 Rifle Magazine, .223 Remington, 40 Round, Black, 1 Pack, Polymer, MGMPI233BLK-40RD
Magpul Industries PMAG GEN M3 AR-15/M16/M4 Rifle Magazine, .223 Remington, 40 Round, Black, 1 Pack, Polymer, MGMPI233BLK-40RD
(12)
List: $42.33 $27.99 Save Up to 34%
Best Rated Magpul Industries PMAG GEN M2 MOE AR-15/M16/M4 Rifle Magazine w/Capacity Window, .223 Rem/5.56x45mm NATO, 30 Round, Black, 1 Pack, Polymer, MGMPI570BLK-30RD
Magpul Industries PMAG GEN M2 MOE AR-15/M16/M4 Rifle Magazine w/Capacity Window, .223 Rem/5.56x45mm NATO, 30 Round, Black, 1 Pack, Polymer, MGMPI570BLK-30RD
(13)
List: $31.04 $21.99 Save Up to 29%
Blazin' Deal Strike Industries AR-15 .223 Remington/5.56 NATO Rifle Magazine, 33 Round, Smoke Gray, 1 Pack, Polymer, Smoke, 0, SI-AR-MAG-33RD
Strike Industries AR-15 .223 Remington/5.56 NATO Rifle Magazine, 33 Round, Smoke Gray, 1 Pack, Polymer, Smoke, 0, SI-AR-MAG-33RD
(11)
List: $17.95 $13.73 Save Up to 24%
Walker Defense Research 3 M-LOK Slot Length Nile Silicon Carbide M-LOK Rail Covers, 3 Pack, NILE-3-SLOT-3-PACK
Walker Defense Research 3 M-LOK Slot Length Nile Silicon Carbide M-LOK Rail Covers, 3 Pack, NILE-3-SLOT-3-PACK
(3)
$59.99
Questions & Answers
Customer Reviews
Most Recent Reviews
Expect it to be pretty dang good. by John Price, March 14, 2025
I got this as a replacement upper for one that wasn't really up to my standards and this has been a great replacement.
Read 1 Review
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
Handguard Length:
16 in
Weight:
0.75 lb

Code: 3TG-UFH-NL4UR4-NLX302

MPN: NLX302

UPC: 793585908242

List: $700.00Save $35.00
$665.00

ATTENTION! We currently do not ship this product to P.O. Boxes, AK, CA, CT, DE, HI, MA, NJ, NY, U.S. Territories, or select Colorado locations. Please see our policies for more information or a detailed list of locations.

Product Info for Next Level Armament NLX556 AR15 556 Nato 16in Complete Upper Receiver

Whether youre ready to finish your build, add capability to an existing rifle, or upgrade your AR15 rifle, with NLX556 GFK complete upper, we have you covered! 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?image

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-15

Next Level Armament NLX556 AR15 556 Nato 16in Complete Upper Receiver Orderable Models

List of Orderable Models

  • Next Level Armament NLX556 AR15 556 Nato 16in Complete Upper Receiver, Midlength, 1-7 Twist, Black, NLX302 , MPN: NLX302 , UPC: 793585908242 , Code: 3TG-UFH-NL4UR4-NLX302
Compare (0)
1 item has been added
Add at least two items to compare
Last updated 2026-07-30 UTC.