Description
Want an LR-308 that looks as good as it performs? Want to develop that “extension of yourself” level of familiarity that only building it yourself could grant you? Get your zen on with this LR-308 upper assembly, with a black nitride barrel that’s been given straight fluting to show that attention-getting stainless steel underneath.
This side-charging LR-308 upper assembly comes with a pre-built side-charging upper assembly that features a 20-inch black nitride straight-fluted Heavy Barrel paired with a 15-inch free-M-Lok floating handguard. Once you complete your LR-308 (DPMS gen 1 patterned) 80% lower, you just build it, and mount the backup sights or optic of your choice.
What’s Included
This is not a firearm. It includes an pre-built upper receiver, bolt carrier group, and a charging handle.
.308 AR Upper Assembly Specs
Barrel
- Chamber: .308 Winchester
- Contour: Heavy Barrel
- Length: 20”
- Twist Rate: 1:10
- Gas System: Rifle-length
- Gas Port Barrel Dia: 0.076”
- Muzzle Threads: 5/8×24
- Material: 416R Stainless Steel
- Finish: Stainless Steel with Black Nitride
- Process: Button Rifled
- Lining: Stainless
- Muzzle: A2-style “birdcage”
Handguard
- Attachment System: 15″ M-Lok
- Finish: Type III Hardcoat Anodized (Mil-Spec)
- Top Rail: M1913 Picatinny
- Material: Billet 6061-T6 Aluminum
- Attachment: Barrel Nut
Upper Receiver
- Profile: LR-308 Flattop
- Material: Forged 7075-T6 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: Parkerized
- Gas Key: Staked, Chrome-lined
- Charging Handle: Included
Lower receiver not 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 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.
- Platform:
- AR10
- Caliber:
- .308 Winchester
- Barrel Size:
- 20″
- Barrel Finish:
- Nitride
- Twist Rate:
- 1/10
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 LR-308 Side-Charging Upper Assembly - 20" Black Nitride, Straight Fluted, Heavy Barrel, 1:10 Twist Rate with 15" M-Lok Handguard right for me?
- Our LR-308 Side-Charging Upper Assembly - 20" Black Nitride, Straight Fluted, Heavy Barrel, 1:10 Twist Rate with 15" M-Lok Handguard is ideal if you’re shopping for: LR-308 Side-Charging Upper Assembly - 20" Black Nitride, Straight Fluted, Heavy Barrel, 1:10 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 LR-308 Side-Charging Upper Assembly - 20" Black Nitride, Straight Fluted, Heavy Barrel, 1:10 Twist Rate with 15" M-Lok Handguard suitable for me?
- Our LR-308 Side-Charging Upper Assembly - 20" Black Nitride, Straight Fluted, Heavy Barrel, 1:10 Twist Rate with 15" M-Lok Handguard is popular among Michigan customers for personal defense and sport shooting.
