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Adams Arms 16-inch Carbine Base 5.56 Complete Upper Assembly - UA-16-C-B-556
Adams Arms 16-inch Carbine Base 5.56 Complete Upper Assembly - UA-16-C-B-556

Price: $699.99
Sale Price: $399.99
Savings: $300.00

Stock Status:.

Availability:: Usually Ships in 24 to 48 Hours
Product Code: ETC-UA-16-C-B-556


Adams Arms 16" AR15 5.56 Carbine Base Complete Piston Upper Assembly

Adams Arms is well known for their AR-15 piston kits, now they are producing their own complete uppers. Their quality is excellent and their price makes them, in our opinion, one of the best uppers on the market today. This base model upper assembly is built from an Adams Arms upper receiver, Adams Arms piston kit with one-piece bolt carrier, and military spec M4 barrel.


  • Caliber - 5.56 NATO
  • Barrel - 16" 1:7 RH Twist
  • Barrel Contour - M4
  • Barrel Material - CrMoV
  • Barrel Lining - Melonite
  • M4 Feed Ramps
  • Gas System - Carbine Length Piston System
  • Forearm - M4 Hand guards
  • Flash Hider - A2
  • Overall Length - 25"
  • Overall Weight - 4.23lbs

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I was on your website last night and ordered two or three items. I noticed the number of pictures for the items on sale has increased significantly. They look great and really add to the presentation of all your parts/components for sale. Great job and keep up the good work. You're an outstanding staff and the best customer service. — Semper Fidelis, Rod

Thanks for the fast shipping! I ordered June 14 and had it in the noon mail on June 17. You also sent me several emails notifying me of the order and that it had shipped. I appreciate that initial contact. — Robert

Thank you very much. I will be doing business with you many times in the future. Excellent customer service. – D. Anderson