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5.56mm AR 15 Upper Assembly - 16" Stainless Steel Barrel, 1:8 Twist Rate with 13.5" M-Lok Handguard

Was: $419.99
Now: $349.99
SKU:
5561618(SS)-MLOK(135)_AR15-CH_BCG-N
Availability:
Out of Stock

You’ve got a keen eye for getting yourself the quality parts along with the know-how to put it all together. Look no further, because we got an upper assembly that will be sure to surpass your standards.  It features a 16" stainless steel barrel that has an accuracy that will outshine the rest and a 13.5" M-Lok handguard that will allow you to show it off. Plus, you'll get a bolt carrier group that has been high pressure tested to ensure consistency as you near the thousands upon thousands of rounds fired mark as well as a charging handle.

What’s Included

This is not a firearm. It includes an assembled upper receiver, bolt carrier group, and charging handle.

AR-15 Upper Assembly Specs

Barreled uppers are assembled in-house before shipment.

Barrel

  • Chamber: 5.56 NATO
  • Contour: M4/Government
  • Length: 16”
  • Twist Rate: 1:8
  • Gas System: Carbine
  • Gas Port: 0.750”
  • Gas Hole Dia.: 0.070”
  • Muzzle Threads: 1/2x28
  • Feed Ramps: M4
  • Material: 416R Crucible 
  • Finish: Stainless
  • Process: Button Rifled
  • Lining: None
  • Muzzle: A2 “Birdcage” Flash Hider

Handguard

  • Attachment System: 13.5" M-Lok
  • Finish: Type III Hardcoat Anodized (Mil-Spec)
  • Top Rail: M1913 Picatinny
  • Material: Billet 6061-T6 Aluminum
  • Attachment: Barrel Nut 

Upper Receiver

  • Profile: A3 Flat Top
  • Material: 6061 T6 Billet Aluminum
  • Finish: Type III Hardcoat Anodized (Mil-Spec)

Bolt Carrier Group

  • Profile: M16/Full-Auto
  • Steel: 9310 Tool, HPT/MPI-tested
  • Exterior: Black Nitride
  • Interior: Black Nitride
  • Gas Key: Staked
  • Charging Handle: Included

WARNING: Handling firearms parts and accessories can expose you to lead and other petroleum products known to the State of California to cause cancer and reproductive harm. For more information go to: www.P65Warnings.ca.gov

Shipping Restrictions

Shipping of various parts and/or accessories are prohibited to states and locales (ie New Jersey, California, New York, etc…) with restrictions against certain parts and/or accessories or "assault weapons" (i.e. states with high-capacity magazine restrictions, manufacturing of semi-automatic weapons, etc..). It is your responsibility to be aware of your local firearms laws before purchasing from our website or machining a firearm. We try our best to keep our shipping page current, but laws change daily.

GunBuilders.com only ships within the United States. Federal legislation dictates we cannot ship our products internationally.

Platform:
AR15
Caliber:
5.56
Barrel Length:
16"
Barrel Finish:
Stainless Steel
Twist Rate:
1/8
Handguard Type:
Free-float
Handguard Length:
13.5"
Gas System Length:
Carbine-length

We are a national retailer of individual components and not all products depicted on this website are legal in every state. Shipping of various products found on this website are prohibited to some states (such as California, Connecticut, District of Columbia, Hawaii, New Jersey, New York, Rhode Island, and Washington). The information, pictures, text or products presented on this website are not a representation by us, and should not be understood by you, that any product or completed firearm is legal to assemble or own in your state of residence. We encourage each and every builder to perform their own research about the state and federal laws that apply to them. It is your responsibility to understand the law and we encourage you to consult with an attorney or your local ATF representative.