Noveske N4 Lo-Pro A3 300 AAC Flat-Top Upper Assembly

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5.00 LBS
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MSRP: $1,800.00
Now: $1,299.00
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This Noveske N4 Lo-Pro Complete AR-15 Upper Assembly is chambered in 300 AAC Blackout and comes fully assembled and ready to drop onto any standard lower receiver. It comes equipped with one of Noveske's legendary Stainless Steel Match Barrels featuring polygonal rifling with a 1 in 7" twist, M4 feed ramps, 5/8"-24 muzzle threads, and a non-glare, bead-blasted finish. Additional features include a Noveske-marked BCM Gunfighter charging handle, a pinned low profile gas block and an AAC 51-T Blackout Flash Hider.

The upper's Pistol Length Gas System provides optimal reliability with subsonic 300 AAC Blackout ammunition while suppressed and supersonic ammunition while unsuppressed. While supersonic ammunition may also function with a sound suppressor installed, subsonic ammunition fired without a sound suppressor may cause cycling problems.

  • Upper Receiver: A3 Flat-Top
  • Barrel Length: 16"
  • Barrel Contour: Medium
  • Barrel Material: 416R Stainless Steel
  • Muzzle Thread Pattern: 5/8"-24
  • Chrome Lined: No
  • Barrel Finish: Bead-Blasted Satin Grey
  • Twist Rate: 1 in 7" Polygonal
  • Chamber: 300 AAC Blackout
  • Bolt Carrier: Mil-Spec
  • M4 Feed Ramps: Yes
  • Muzzle Device: AAC Blackout 51-T Flash Hider
  • Gas System Length: Pistol
  • Gas Block Diameter: 0.750"
  • Handguard: NSR-13.5, Free Float
  • Sights: None
  • Extras: BCM Gunfighter Charging Handle (Noveske Marked)
  • Weight: 4 lbs, 8.7 oz

WARNING This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

We are Not Accepting Returns or Exchanges For Any PPE Equipment or Ballistic Items.

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Additional Information

Product ID:
Complete Upper Assemblies
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