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16" 5.56 NATO Upper - Chrome Moly M4 Barrel - 17" MLOK Rail - Flash Cone

$259.99
(1 review) Write a Review
SKU:
16556UAM41X8CMVPFC17MLR
  • AR-15 Charging Handle | Standard Milspec
  • AR-15 Charging Handle | Tactical Extended Latch | Gen 2
  • AR-15 Charging Handle | Tactical Extended Latch | Gen 4
  • AR-15 Ambidextrous Charging Handle | Ambi Latch
  • 5.56/223 Bolt Carrier Group AR-15 | Nitride Milspec BCG
  • 5.56/223 Bolt Carrier Group AR-15 | Nickel Boron NIB Milspec BCG
  • Superlative Arms .750” Adjustable Gas Block | Stainless Steel | Solid, Set Screw | Melonite Finish AR-15
  • CMMG ZEROED Adjustable Gas Block .750" | AR-15 LR-308 Steel Black
  • 5.56/223 30 rd Magazine | Magpul | PMAG Gen 2 MOE AMG571-blk
  • 5.56/223 30 rd Magazine w/ WINDOW | Magpul | PMAG Gen 2 MOE
  • 5.56/223 10 rd Magazine | Magpul | PMAG Gen M3 MAG559-BLK
  • 5.56, 223 30 rd Magazine | ASC | Stainless Steel Black
  • 5.56/223 10 rd Magazine | ASC | Aluminum Grey Moly
  • Cerakote | FDE Fat Dark Earth
  • Cerakote | OD Green
 
 
 
 
 
 
 
 

16" 5.56 NATO AR-15 Upper Assembly | 1x8 CMV Parkerized Carbine M4 Barrel | Flash Cone | 17" MLOK Rail

Far from being just a basic configuration, the 5.56 NATO is the definitive, battle-proven standard for the AR-15 platform that balances high-velocity performance with unmatched versatility. This system thrives with a massive variety of ammunition, specifically tuned for 55gr to 77gr loads to provide unrivaled reliability across tactical and sporting applications. If you're building a dedicated duty rifle or a high-volume range trainer, a 5.56 upper assembly offers the widespread parts availability and flat-shooting consistency required to push the limits of the small-bore gas gun.

Our AR15 Elite AR-15 uppers are American Made and machined by manufacturers of mil-spec AR-15 components.  All barrels are individually checked for headspace using Manson go and no-go gauges.

Specifications: 

  • Upper Receiver: AR15 Milspec forged aluminum upper receiver with forward assist and dust cover assembly installed. Matte black hard coat anodized Mil 8625 Type 3 Class 2. Forged from 7075 T6 aluminum.  7075 Aluminum is superior in strength to 6061 billet aluminum.
  • Handguard: Premium, Lightweight 17" Extended Rifle Length Narrow-Profile AR15 M LOK Handguard. Fit and finish on our line of ergonomical free float rails is outstanding and light weight. M LOK slots run the entire length of our rail at the 3, 6, and 9 o'clock positions. M LOK compatible rail sections and attachments can easily be attached to our handguards which makes adding accessories like sights, bipods, flash lights, grips, lasers, etc. a breeze.  Matte black hard coat anodized Mil 8625 Type 3 Class 2. Milled from 6061 aircraft aluminum.
  • Barrel: 16 inch 5.56 NATO Chrome Moly M4 profile Barrel with 1x8 twist. 1/2x28 muzzle threads.  Parkerized Finish. Standard AR15 Barrel Extension w/M4 feed ramp.  Properly headspaced with Manson Go and No-Go Gauges.  Will handle 5.56 NATO and 223 Remington Ammunition.
  • Gas Block: .750” Low Profile, Nitride Finish.
  • Gas System: Carbine Length Gas Tube.
  • Muzzle Device: Flash Cone with crush washer.

Upper arrives assembled, ready to use and will fit all standard Milspec dimension AR 15 lower receivers.

This item is NOT a firearm and will be shipped directly to you, no FFL is required.

1 Review Hide Reviews Show Reviews

  • 5
    AR upper

    Posted by Edward Collins on Dec 5th 2025

    Well built upper and looks better in person. Glad I got this one without the flash hide. Quiter.