Description
If you’re starting an LR-308 build, you’ll need a lower parts kit. How about an LPK with an upgraded grip?. Aero Precision’s M5 Enhanced .308 Lower Parts Kit provides just that: Quality, mil-spec internals for your stripped lower receiver, or finished .308 80% lower, plus a Magpul MOE pistol grip.
NOTE: Because of minor variances in the M5 receiver’s design, the M5 .308 LPK’s takedown and pivot pins protrude from other .308-type receivers slightly more. This does not affect functionality in any way.
What’s Included
- Takedown/pivot Spring
- Takedown/pivot detent
- Trigger/hammer pin
- M5 .308 Takedown pin
- M5 .308 Pivot pin
- M5 .308 Bolt Catch
- Bolt Catch Spring
- Bolt Catch Buffer
- Bolt Catch Roll pin
- Safety Selector
- Safety Selector Spring
- Safety Selector Detent
- Buffer Retainer
- Buffer Retainer Spring
- A2 Pistol Grip
- Pistol Grip Screw
- Pistol Grip Lock Washer
- Trigger Spring
- Hammer Spring
- Disconnector Spring
- Magazine Catch Body
- Magazine Catch Spring
- Extended Magazine Catch Button
- Hammer
- Trigger
- Disconnector
Required Tools
To install all the components listed above, you’ll need a pair of roll pin punches and a gunsmithing hammer. An Armorer’s Wrench is recommended for installing the buffer assembly (sold separately, see details below).
Grab everything you need from our Gunsmithing Tools.
Easy-to-Follow Install Instructions
First time assembling, or need assistance with certain steps? Check out our in-depth instructional and picture guide. It shows the full LPK assembly with tips and tricks, including tools required and the buffer tube and castle nut install.
Buffer Assembly Sold Separately
Finishing Your .308 Build
To complete your lower with this parts kit, you’ll also need a .308 buffer tube kit, which are available here.
Not sure which other components you need to assemble a working .308 AR? Check out our barreled .308 upper assemblies. They include a bolt carrier group and charging handle, and ship ready to install atop your completed 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.
- Brand:
- Aero Precision
- Platform:
- AR10
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 Aero Precision M5 .308 Enhanced Lower Parts Kit right for me?
- Our Aero Precision M5 .308 Enhanced Lower Parts Kit is ideal if you’re shopping for: Aero Precision M5 .308 Enhanced Lower Parts Kit, 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 Aero Precision M5 .308 Enhanced Lower Parts Kit suitable for me?
- Our Aero Precision M5 .308 Enhanced Lower Parts Kit is popular among Michigan customers for personal defense and sport shooting.
