.223 Wylde AR-15 Upper Assembly - (16" Stainless Barrel & 13.5" M-Lok Handguard, 1:8 Twist)



Now you can get the same great look of our stainless steel upper assembly for your AR-15, but with the more versatile 1:8 twist rate to accommodate a wider variety of bullet weights. You still get that same great 16" stainless steel barrel with 13.5" M-Lok free-floating handguard.  The difference is, this particular barrel has been rifled to accept the 1:8 twist rate.

Barrel Features & Specs:

  • Barrel Length: 16″
  • Gas System: Carbine-Length
  • Barrel Profile: M4
  • Barrel Steel: 4150 CMV
  • Barrel Finish: Stainless
  • Chrome Lining: None
  • Muzzle Thread: 1/2-28
  • Chamber: .223 Wylde (fires both .223 and 5.56mm NATO)
  • Twist Rate: 1:8
  • Barrel Extension: M4
  • Diameter at Gas Block: .750
  • Gas Block Type: Low-Profile
  • Muzzle Device: A2 Flash Hider

Receiver Features & Specs:

  • Receiver Material: Forged 7075 T6 Aluminum
  • Receiver Type: A3
  • Handguard Type: 13.5" M-Lok (Free-Float)
  • Bolt Carrier Group Included: Yes
  • Bolt Steel: Carpenter 158 Steel
  • Bolt Carrier Profile: Full-Auto (M16)
  • Charging Handle Included: Yes 
No FFL required  Made in the USA  Lifetime Warranty

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

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