Description
If you’re a hunter, you can appreciate the need for a somewhat larger caliber at a more intermediate range. You’ll need a rifle whose ability really shines in this area. And what better way to avoid paying current market prices than to build it yourself? So check out this LR-308 build kit.
You get a pre-built upper side-charging assembly that starts with a 16-inch parkerized heavy-profile barrel paired with a 15-inch free-floating handguard.
What’s Included
This is not a firearm. It includes an assembled upper receiver, bolt carrier group, and side charging handle.
.308 AR Upper Assembly Specs
Barrel
- Chamber: .308 Winchester
- Contour: Heavy
- Length: 16”
- Twist Rate: 1:10
- Gas System: Mid-length
- Gas Port Barrel Dia: 0.082”
- Muzzle Threads: 5/8×24
- Material: 4150 Chrome Moly Vanadium
- Finish: Parkerized
- 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:
- 16″
- Barrel Finish:
- Parkerized
- 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 - 16" Parkerized Heavy Barrel, 1:10 Twist Rate with 15" M-Lok Handguard right for me?
- Our LR-308 Side-Charging Upper Assembly - 16" Parkerized Heavy Barrel, 1:10 Twist Rate with 15" M-Lok Handguard is ideal if you’re shopping for: LR-308 Side-Charging Upper Assembly - 16" Parkerized Heavy Barrel, 1:10 Twist Rate with 15" M-Lok Handguard, ar parts, AR Parts. Great options for both beginners and experienced owners.
- Try these popular searches:
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 - 16" Parkerized Heavy Barrel, 1:10 Twist Rate with 15" M-Lok Handguard suitable for me?
- Our LR-308 Side-Charging Upper Assembly - 16" Parkerized Heavy Barrel, 1:10 Twist Rate with 15" M-Lok Handguard is popular among Michigan customers for personal defense and sport shooting.
