Description
So half-way done with building your own AR-15. You’ve gotten as far as building the bottom half, and you’re now ready to tackle your upper assembly. Think of it this way: you’re not half-way done, you’re damn near completely done. Because if you can turn a screwdriver, allen wrench, or socket wrench to install backup sights or optics, we’ll build your upper assembly, the rest of your rifle, for you.
This prebuilt upper assembly comes to you with a 16-inch parkerized barrel, chambered in 5.56mm NATO, and made of 4150 chrome moly vanadium steel. It’s been coupled with a 15-inch free-floating MLOK handguard. It also comes with the charging handle and BCG. All you need to do is install the sights or optic of your choice and then mount it onto your completed lower assembly.
PLEASE NOTE: This is a prebuilt upper assembly only. It includes an assembled upper receiver, bolt carrier group, and charging handle.
AR-15 Rifle Upper Assembly Specs
Barreled upper assemblies are assembled in-house before shipment.
Barrel
- Chamber: 5.56mm NATO
- Contour: M4/Government
- Length: 16”
- Twist Rate: 1:8
- Gas System: Carbine
- Gas Port: 0.750”
- Gas Hole Dia.: 0.070”
- Muzzle Threads: 1/2×28
- Feed Ramps: M4
- Material: 4150 CMV
- Finish: Parkerization
- 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
Stripped 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: Black Nitride
- Interior: Black Nitride
- Gas Key: Staked
- Charging Handle: Included
Lower receiver sold separately.
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.
80-Lower.com only ships within the United States. Federal legislation dictates we cannot ship our products internationally.
- Caliber:
- 5.56
- Barrel Size:
- 16″
- Twist Rate:
- 1/8
- Barrel Finish:
- Parkerized
Frequently Asked Questions
- How fast is shipping?
- Orders ship within 3 business days to your selected Michigan FFL dealer with full tracking info.
- Where can I pick up my firearm?
- Pickups are at licensed FFL dealers in Michigan. Use terms like “gun shop near me in Michigan” or “FFL dealer in Michigan” to locate one.
- Do I need a permit or license?
- For handguns, residents must obtain a License to Purchase (unless they already hold a CPL). Long guns from FFL dealers require no additional permits—per Michigan law.
- Can I carry this concealed or openly?
- Michigan is a “shall-issue” state for concealed carry at age 21+. Open carry is allowed without a permit, except in vehicles or specified locations :contentReference[oaicite:20]{index=20}.
- Is this 5.56 AR 15 Upper Assembly - 16" Parkerized Barrel, 1:8 Twist Rate with 15" M-Lok Handguard right for me?
- Our 5.56 AR 15 Upper Assembly - 16" Parkerized Barrel, 1:8 Twist Rate with 15" M-Lok Handguard is ideal if you’re shopping for: 5.56 AR 15 Upper Assembly - 16" Parkerized Barrel, 1:8 Twist Rate with 15" M-Lok Handguard, ar parts, AR Parts. Great options for both beginners and experienced owners.
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Frequently Asked Questions
- How fast will my order ship?
- We ship all orders within 1-3 business days to your licensed Michigan FFL dealer. Tracking info will be emailed.
- What is your return policy?
- Non-firearm items can be returned within 14 days unused. Firearms sales are final after FFL transfer. See full return policy.
- Is the 5.56 AR 15 Upper Assembly - 16" Parkerized Barrel, 1:8 Twist Rate with 15" M-Lok Handguard suitable for me?
- Our 5.56 AR 15 Upper Assembly - 16" Parkerized Barrel, 1:8 Twist Rate with 15" M-Lok Handguard is popular among Michigan customers for personal defense and sport shooting.
