16″ Upper M4 1×7 5.56, Carbine Single Rail Gas Block No BCG or Charging Handle


Elevate your rifle’s performance with our 16″ 556 M4 Upper, featuring a versatile chamber that accommodates both .223 and 5.56 rounds. Crafted from stress-relieved 4150 chrome moly steel with a nitride finish, this upper ensures durability and corrosion resistance. With its A2 flash hider, single rail low profile gas block, and A4 flat-top upper, this product offers unmatched reliability and customization options.

Product price: $255.95
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16″ M4 Carbine Length Chrome Moly Nitride Processed

Looking for a top-quality upper receiver that can accommodate both .223 and 5.56 rounds? Check out our 16″ 556 M4 Upper, Carbine Single Rail Gas Block! It features a chamber that can handle both types of ammo, plus a M4 feed ramp for added reliability. The barrel is made from 4150 chrome moly steel and is stress relieved for superior durability. It’s also nitride treated for corrosion resistance. The flash hider is an A2 style, and the handguard is a standard 2-piece black handguard. The gas block is a single rail low profile gas block. The upper receiver is an A4 flat-top upper. This product does not include a bolt carrier group or charging handle. It weighs approximately 3.1 pounds without the BCG or charging handle. It’s proudly made in the USA!

16″ 556 m4 Upper Features:

  • Chamber – .223-5.56 , M4 Feed Ramp (Shoots both .223 and 5.56)
  • Barrel Twist – 1×7
  • Barrel Thread – 1/2 x 28
  • Steel 4150 Chrome molly stress relieved. Nitride
  • Flash Hider – A2
  • Handguard – Standard 2 Piece Black Handguard
  • Gas Block – Single Rail Low Profile Gas Block
  • Upper Receiver – A4 Flat-Top Upper
  • Charging Handle – None
  • Approx. Weight   3.1 LBS. without BCG and Charging Handle
  • SKU: DT11-041
  • Made in the USA

Daytona Tactical test fires every custom upper to verify cycling. We do not guarantee cycling with all ammunition due to vast differences in the quality of ammunition. We will only warranty cycling with US made ammunition. We will not warranty cycling with imported, steel cased or reloaded rounds.

Additional information

Weight 7 lbs

Barrel Chamber

Barrel Length

Barrel Material

Barrel Finish

Barrel Twist

Handguard Length

Barrel Thread

Barrel Gas Block


1 review for 16″ Upper M4 1×7 5.56, Carbine Single Rail Gas Block No BCG or Charging Handle

  1. 5 out of 5

    Dan Carroll (verified owner)

    I am pretty happy with the product I received. It was exactly what I was looking for at a fantastic price. The gas block is a single rail block, but it’s not the same as pictured. I could also tell the block was dropped or damaged at some point. It has a dent on one side and was clearly painted over. It’s honestly not a big deal to me, but may be be for some. Overall I really like it, and it was become my #1 home defense rifle.

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