So you're interested in building your own AR-15. But you don't know where to begin. Try this: This prebuilt upper assembly shows up with a 16" parkerized barrel made of 4150 chromoly vanadium and it's been matched to a 15" free-floating MLOK handguard. It's chambered in .223 Wylde, so it'll reliably chamber and tightly group both .223 Remington and 5.56 NATO. It also comes with the charging handle and an M16-type BCG. In short, this upper assembly's configured to provide all the performance and components you need at an affordable price. Guesswork removed.
What’s Included
This kit is not a firearm. It includes an assembled barreled upper assembly, bolt carrier group, and charging handle.
Here's the beginner's guide to 80% lowers.
AR-15 Rifle Upper Assembly Specs
Barreled upper assemblies are assembled in-house before shipment.
Barrel
- 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
Handguard
- Attachment System: 15" M-Lok, Lightweight
- Finish: Type III Hardcoat Anodized (Mil-Spec)
- Top Rail: M1913 Picatinny
- Material: Billet 6061-T6 Aluminum
- Attachment: Barrel Nut
Upper Receiver
- Profile: M4 Flattop
- Material: Forged 7075-T6 Aluminum
- Finish: Type III Hardcoat Anodized (Mil-Spec)
Bolt Carrier Group
- Profile: M16/Full-Auto
- Steel: Carpenter No. 158 (Mil-Spec)
- Exterior: Phosphate Coating
- Interior: Chrome-Lined
- Gas Key: Staked, Chrome-lined
- Charging Handle: Included
Lower receiver sold separately.
Shipping Restrictions
We cannot ship certain parts and accessories to states that prohibit the sale or ownership of such components, like California, New York, and others. Before ordering, see our shipping restrictions for a list of all prohibited states and locales. We try our best to keep our shipping restrictions current, but state laws change almost daily. It is your responsibility to be aware of your local firearms laws before purchasing from our website or machining a firearm.
80LowerJig.com only ships within the United States. Federal law prevents international shipments of our products.
WARNING: Handling firearms parts and certain firearm 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, visit www.P65Warnings.ca.gov.
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 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.
www.80lowerjig.com only ships within the United States. Federal legislation dictates we cannot ship our products internationally.
