NLX556GFK Complete Upper


NLX556 GFK  AR 15 Complete Upper Receiver

Complete your rifle build or upgrade your existing rifle with a top quality complete AR15 upper receiver from Next Level.

Available on backorder

Barrel *

Muzzle Device *

Next Level Complete AR15 Upper Receiver 

Whether you’re ready to finish your build, add capability to an existing rifle,  or upgrade your rifle with an AR15 complete upper receiver, we have you covered! 

Next Level manufactures all our products in house with American made materials.  From our 7015 aluminum standard to our precision Aerospace machining, our quality speaks for itself.  Built with the best parts on the market, our complete upper receiver comes with all the upgrades standard.  Why pay less for inferior parts and pay more to upgrade later? 

Your upper includes the following parts:

  • NLX556 Elite forged upper receiver
  • NLA 16″ barrel, .223 Wylde, 1/8 twist (choice of M4 or lightweight profile)
  • 556 BCG w/ DLC finish
  • NLA556 Ambidextrous Charge Handle
  • NLA Billet low profile gas block
  • NLA 13″ Mlok handguard
  • Next Level muzzle device of your choice