Description
Build your custom AR-10 with an easy-to-finish polymer 80% lower.
This .308-compatible 80% lower is constructed from lightweight but tough nylon-reinforced polymer. This receiver blank’s polymer construction makes drilling and cutting a little quicker and easier — making this unit perfect for first-time 80% builders!
Assembling Your .308 80% Lower
Once fabricated, this lightweight lower receiver will provide the same parts compatibility and functionality as any other AR-15 lower receiver. Pair with a barreled .308 rifle upper and a .308 lower build kit. Or just grab an AR-10/LR-308 build kit to finish your custom rifle!
Polymer .308 80% Lower Specifications
- Compatibility: .308 Winchester, 6.5 Creedmoor
- Construction: Nylon-reinforced polymer
- Color Options: Gray
- Fitment: 100% Mil-Spec
- Fire/Safe Engraving: No
- Features: Broached magazine well, integrated trigger guard
- 100% Made in The USA
Need Help Building? Read Our Guides
Follow our step-by-step picture guide to install your lower parts kit and buffer.
Not sure which parts to pick? Read our Ultimate Guide on How to Build an AR-15.
New to building custom guns? Read our FAQ: What Is An 80% Lower?
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
- Material:
- Polymer Composite
- Caliber:
- 6.5 Creedmoor
- Platform:
- AR10
- Caliber:
- .308 Winchester
- Material:
- Polymer Composite
- Caliber:
- 6.5 Creedmoor
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 Polymer80 LR-308 80% Lower Receiver right for me?
- Our Polymer80 LR-308 80% Lower Receiver is ideal if you’re shopping for: Polymer80 LR-308 80% Lower Receiver, 80 Lower. 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 Polymer80 LR-308 80% Lower Receiver suitable for me?
- Our Polymer80 LR-308 80% Lower Receiver is popular among Michigan customers for personal defense and sport shooting.
