Description
Features a notched hammer and precision-machined parts.
Combine the best of old-school ARs with the ergonomics of a modern parts kit with the Sporter LPK from Gun Nuts. Features an original notched hammer, for compatibility with unshrounded bolt carriers and old-school uppers from Colt, Bushmaster, and military surplus rifles.
Mil-spec fitment guarantees compatibility with virtually all AR-15 lower receivers, including 80% lowers and retailer stripped lowers.
Sporter Lower Parts Kit: What’s Included
This AR-15 Lower Parts Kit includes all components required for assembling your AR-15 stripped lower receiver, minus a buffer tube kit (sold here).
- Bolt Catch
- Bolt Catch Plunger
- Bolt Catch Roll Pin
- Bolt Catch Spring
- Buffer Retainer
- Buffer Retainer Spring
- Disconnector
- Disconnect Spring
- Notched Hammer
- Hammer Pin
- Hammer Spring
- Magazine Catch
- Magazine Catch Button
- Magazine Catch Spring
- Pistol Grip (A2 style)
- Pistol Grip Lock Washer
- Pistol Grip Screw
- Pivot Pin
- Pivot Pin Detent
- Pivot Pin Detent Spring
- Ambitdextrous Safety
- Safety Detent
- Safety Detent Spring
- Takedown Pin
- Takedown Pin Detent
- Takedown Pin
- Detent Spring
- Trigger
- Trigger Guard
- Trigger Guard Roll Pin
- Trigger Pin
- Trigger Spring
LPK 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 Custom AR-15 Build
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:
- AR15
- Brand:
- Schmid Inside
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 Gun Nuts® Sporter Lower Parts Kit right for me?
- Our Gun Nuts® Sporter Lower Parts Kit is ideal if you’re shopping for: Gun Nuts® Sporter 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 Gun Nuts® Sporter Lower Parts Kit suitable for me?
- Our Gun Nuts® Sporter Lower Parts Kit is popular among Michigan customers for personal defense and sport shooting.
