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Angstadt Arms AR-15 5.56 Complete Upper Assembly - 16"

AR-15 Complete Upper Receiver

Out of stock

Angstadt Arms AR-15 5.56 Complete Upper Assembly - 16"


Angstadt Arms complete 5.56 NATO AR-15 16″ upper receiver assembly is ready to run out of the box with any AR-15 Mil-Spec lower receiver. It features the same high quality parts that go into are UDP-556 rifles.


  • 7075-T6 billet aluminum slick side upper receiver with no forward assist or dust cover
  • 16″ M4 profile barrel in chrome moly with a 1/7 twist rate, black melonite finish and a 1/2×28 thread pitch
  • M4 feed ramp extensions
  • Mil-spec 5.56 complete bolt carrier group assembly finished in black nitride
  • 15” ultralight handguard with M-LOK® mounting interface on the 3, 6, 9 & 12 O’clock positions
  • Top mil-spec 1913 picatinny rail with lightening cut
  • Angstadt Arms black nitride A2 birdcage flash hider
  • .750″ low profile gas block with carbine length gas tube
  • Mil-spec charging handle
  • Caliber: 5.56 NATO
  • Weight: 3 lbs 13.5 oz
More Information
SKU AAUT056016
Product Type AR-15 Complete Upper Receiver
Manufacturer Angstadt Arms
Gas Block Diameter .750"
Thread Pitch 1/2x28
Twist Rate 1:7
Color Black
Gas Length Carbine
Rail Length 15"
Platform AR-15
Barrel Length 16"
Caliber 5.56 NATO
Threaded Yes

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