Custom 16" 5.56 Complete Upper - Upper, 16" Barrel, Handguard, Gas Block and Tube, Muzzle Brake

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Usually ships within 2 days
  • 2 Port Outside Thread Muzzle Brake AR-15 223/556 308 9mm 30cal - 2
  • 3 Port Outside Thread Muzzle Brake AR-15 223/556 308 9mm 30cal - 2

16" Complete AR15 223/556 Upper

Note: Your complete upper will be assembled with the custom parts you pick out, so expect some additional handling time to get your custom build assembled before it ships out. Generally they will still ship out within 2 days (often earlier) depending on what time your order is placed.

The Breek Arms complete AR15 223/556 16" upper comes jam packed with features that usually cost you a fortune in order to trick out the plain upper you may have purchased before. Our AR15 complete upper uses quality components that come from trusted companies. The upper comes equipped with a 16” 5.56 barrel, and with an optional black nitride bolt carrier group you can have flawless function when operating. The upper receiver is from Aero Precision paired with a Breek Arms Handguard of your choice. In the front, you have a couple options for the muzzle device. Keep it open to lessen the recoil, or if you want to tame the sound simply twist on your optional Castle Blast Shield. Last but especially not least, the upper can be equipped with our famous WARHAMMER ambidextrous charging handle for easy one handed manipulation. The upper can be placed on any type of mil spec AR-15 lower.

Items Included:


  • Compatible with Mil-Spec AR-15 lowers
  • Full length picatinny top rail
  • Bear Creek Arsenal expects 1" MOA with any barrels 16" or longer

Breek Arms is dedicated to bringing our people new and improved products and solutions at reasonable prices while maintaining a high quality product. This feature rich and affordable AR15 upper is just another way of fulfilling our mission.

2 Reviews Hide Reviews Show Reviews

  • 5
    Excellent !!!

    Posted by Rhoniel De Lios on Apr 3rd 2020

    I am very impressed with the way Breek Arms put this thing together. Not only are the parts of good quality but they actually aligned everything so well (gas block, handguard, muzzle brake, etc) and without scratching them. The finish on Breek Arms product from material to texture and color is excellent. Uppers I‘ve purchased from other vendors would usually have parts not installed correctly or not lining up and/or with scratches and tool marks. I am so happy with this purchase that I placed another order. It’s definitely worth every penny. Thank you Breek Arms.

  • 5
    Works great!

    Posted by Nick S. on Nov 10th 2019

    As described, functions 100%. Easy plug and play for my lower. The Warhammer upgrade is worth every penny.