.223 Wylde AR 15 Rifle Kit (16" Parkerized Barrel & 15" MLok Handguard, Side-Charged) w/ 80% Lower (1:8 Twist)

(You save $33.00 )


Please Note: Given the current demand for this product and supply shortages, your order may ship with a black hammer and trigger or a stainless steel hammer and trigger.

An upgraded M4 profile with better accuracy and a side-charging handle.

The M4-profile 4150 CMV barrel in this rifle kit provides MOA accuracy, thanks to a new .223 Wylde chamber that better handles .223 Remington and 5.56 NATO. Now you can safely shoot both. In addition, we went with a free-float, lightweight M-Lok handguard that provides plenty of rail estate for that bipod, tac-light, front BUIS, and other kit.

All other standards come mil-spec in this rifle kit: An M4 buttstock pairs up with a Carbine buffer, M16 BCG (works with the side-charging handle with no modifications) and mil-spec trigger, housed inside a 7075-T6 forged flattop upper. Select an optional billet or forged 80% lower, pair all this up with an 80% jig, and you’re ready to build a unique AR-15 from scratch.

What’s Included & Specifications


  • Chamber: .223 Wylde
  • 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: 4150 CMV
  • Finish: Parkerized
  • Process: Button-rifled
  • Lining: None
  • Extension: M4
  • Muzzle: A2 “Birdcage” Flash Hider


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

Stripped Upper Receiver

  • Profile: M4 Flattop w/ side-charging handle
  • Material: Forged 7075-T6 Aluminum
  • Finish: Type III Hardcoat Anodized (Mil-Spec)

Bolt Carrier Group

  • Profile: M6/Full-Auto
  • Steel: Carpenter No. 158 (Mil-Spec)
  • Exterior: Phosphate Coating
  • Interior: Chrome-Lined
  • Gas Key: Staked, Chromed
  • Charging Handle: Included
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.

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, 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.