Start your next AR build by killing two birds with one stone. Get your 80% lower and your lower parts kit all in the same place in one fell swoop. This bundle includes both. You get a 6061 T6 billet aluminum 80% lower and a mil-spec lower parts kit that's had its interacting surfaces polished for better-than-mil-spec trigger performance. See below for more info.
The Premium 80% Lower Fire/Safe Marked Billet has been redesigned with YOU in mind. The Premium 80% Billet has been enhanced and now offers a threaded bolt catch release hole as well as a threaded rear takedown detent hole.
These enhancements allow for easy and fluid install of your AR Lower parts kit components, ending some of the most frustrating aspects of your 80% lower build. Each Premium 80% Lower Billet will come with the neededscrews and hex key for install.
Black Fire/Safe Marked Billet 80% Lower Receiver:
- For AR-15 builds (5.56/.223/300 BLK/6.5 Grendel)
- Type III Hard Anodized Billet
- Color: Anodized Black
- 100% Mil-Spec
- Quantity: 1
- Fire/Safe Marked: Yes
- Billet 6061-T6 Aluminum
- Threaded Bolt Catch Hole
- Threaded Rear Takedown Detent Hole
- Screws and Hex Key
- Broached Magwell
- Enhanced, heavy duty trigger guard
- 100% Made in the USA
- NO FFL REQUIRED
No FFL is required to purchase this lower receiver. This Billet 6061 aluminum 80% lower receiver is not considered a firearm and is compliant with the gun control act of 1968 not classified as a firearm as defined in 18 U.S.C. 921(a)(3).
Perfectly Polished for Performance
Th quality control is second to none and the finish show it: Inside you’ll find a disconnector, hammer hook, and sear that were laser-cut and polished to break as clean as glass at exactly 4.5 pounds. The trigger affords perfect reset after every pull, with no break-in required. Every roll pin presses easily, while the hammer and trigger pins glide in with little effort.
Complete AR-15 Lower Parts Kit with Pistol Grip
This AR-15 Lower Parts Kit includes all components required for assembling your AR-15 stripped lower receiver:
- Bolt Catch
- Bolt Catch Plunger
- Bolt Catch Roll Pin
- Bolt Catch Spring
- Buffer Retainer
- Buffer Retainer Spring
- Disconnect Spring
- Steel 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
- Safety Selector
- Safety Selector Detent
- Safety Selector Detent Spring
- Takedown Pin
- Takedown Pin Detent
- Takedown Pin
- Detent Spring
- Steel Trigger
- Trigger Guard
- Trigger Guard Roll Pin
- Trigger Pin
- Trigger Spring
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.
Need more help or detailed steps? Watch our in-depth instructional video here!
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.