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Best 80% Lower

What is an 80 Percent Lower Receiver? โŒ›

It is an unfinished lower receiver that contains only 80% of the milling and drilling did, allowing it to be legally sold as a non-firearm. It can be completed with some basic tools and knowledge of firearms assembly, and are popular among home gunsmiths looking to build their own AR-15 or other modern sporting rifles.

Best 80% Lower

Features ๐Ÿ”ฅ

๐Ÿ“ŒIt provides an excellent base for the gunsmith, allowing them to customize the firearm to their exact specifications without having to purchase a complete, factory-assembled rifle.

๐Ÿ“Œ These receivers are machined from high-quality materials and feature pre-machined holes for attaching the hammer, trigger, safety selector, and other components.

๐Ÿ“Œ They can be finished using very simple tools in just a few minutes.

๐Ÿ“Œ They offer increased accuracy and dependability.

๐Ÿ“Œ Other features include increased safety due to the lack of serial numbers or markings that could identify the firearmโ€™s owner or source of origin.

Our Top Pick
Brownells Stripped Lower Receiver Forged
You don't want to miss out on Brownells' BRN-180 Lower Receiver! Paying homage to Eugene Stoner and Arthur Miller's classic AR-18 rifle from 1963, this forged lower receiver offers both a reliable construction of 7075 aluminum forgings and the nostalgic aesthetic of genuine 'weld' marks found in its stamped predecessors.
Buy Now On Brownells
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Types ๐Ÿ’ก

๐ŸŽฏ Billet Lower Receivers are machined from a solid block of aluminum alloy and can be shaped into almost any design or style desired.

  • This type offers superior strength and durability due to the quality of material used in its construction, as well as being highly customizable with unique designs and styling options available.

๐ŸŽฏ Forged Lower Receivers are created by hammering two pieces of material together, usually aluminum or steel, to form a strong yet simple frame.

  • These are relatively easy to work with and provide excellent structural integrity, making them ideal for budget builds or those on a tight timeline.
  • The downside of these receivers is that they lack the customizability and high-end aesthetic options available in billet models.

๐ŸŽฏ Polymer 80% Lower Receivers are made from durable reinforced polymer materials designed to withstand even the harshest conditions while providing users with cost-effective alternatives to metal lowers.

  • These offer greater flexibility in how they appear as opposed to traditional metal lowers, while still offering strength and durability at an affordable price point.
  • Some polymer receivers may be prone to cracking if not properly handled during installation or use.

Watch this video to find more information ๐Ÿ’ป

Top 13 ๐Ÿš€ 80 Percent Lower Receiver

1# James Madison Tactical 80% Lower Receiver

JAMES MADISON TACTICAL 80% LOWER RECEIVER

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The James Madison Tactical 80% Lower Receiver is a high-quality, durable lower receiver that is perfect for any DIY gunsmith or enthusiast looking to build their AR-15. With its precision machining and reinforced construction, the JMT lower receiver is sure to provide a lifetime of service. Additionally, the JMT lower comes with its three-piece plastic jig which makes assembly quick and easy. So if you’re looking for a top-quality lower receiver that will provide years of trouble-free service, the James Madison Tactical 80% Lower Receiver is a perfect choice.

Video review

Pros:
  • High-quality and durable
  • Precision machining
  • Reinforced construction
  • Lifetime of service
Cons:
  • Some customers have reported receiving defective units
  • The jig is not as sturdy as hoped

 

2# Anderson Manufacturing 80% Lower Receiver

ANDERSON MANUFACTURING 80% LOWER RECEIVER

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Looking to build your AR-15 rifle or carbine? Anderson Manufacturing has you covered with their 80% Lower Receiver. This stripped lower receiver is made from high-strength 7075 T6 aluminum forging for reliable performance and outstanding durability. It’s precision-machined to ensure drop-in installation of Mil-Spec, aftermarket components. So whether you’re looking for a custom shop quality rifle or carbine at a fraction of the price, the Anderson Manufacturing 80% Lower Receiver is the perfect platform for you.

Pros:
  • Made from high-strength 7075 T6 aluminum forging
  • Reliable performance and outstanding durability
  • Precision-machined to ensure drop-in installation of Mil-Spec, aftermarket components
  • Custom shop quality rifle or carbine at a fraction of the price
Cons:
  • May require specialized tools and knowledge for installation
  • Some users have complained about receiving defective products
  • Not available in certain states

 

3# Anderson Manufacturing 80% Lower Receiver Black

ANDERSON MANUFACTURING 80% LOWER RECEIVER BLACK

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Do you require a high-quality, but cheap 80% lower receiver? Anderson Manufacturing is the perfect place for you. Their stripped lower receiver is perfect for anyone looking to build a custom AR-15 rifle or carbine. Made from high-strength 7075 T6 aluminum forging, the Anderson Manufacturing 80% lower receiver is built for reliability and durability. It features a Mil-Spec hard anodized finish for extra strength and superior abrasion resistance. And it’s precision-machined to ensure a drop-in fit for all aftermarket components. So whether you’re a beginner or a seasoned pro, build your dream AR today with Anderson Manufacturing.

Video review

Pros:
  • Made from high-strength 7075 T6 aluminum forging
  • Features a Mil-Spec hard anodized finish
  • Precision-machined to ensure a drop-in fit
  • Easy installation
Cons:
  • May not fit aftermarket components perfectly
  • May not be as reliable as others

 

4# Matrix Arms 80% Lower Receiver

MATRIX ARMS 80% LOWER RECEIVER

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Looking to start your next AR-15 build from scratch? Then pick up a Matrix Arms 80% Lower Receiver and get to work! This forged lower receiver is made from 7075-T6 aluminum for strength and durability and features a black anodized finish for a sleek, professional look. The best part is that you don’t have to ship it to an FFL dealer, so you can get started on your build right away. Plus, it’s stamped with S & F on both sides for a nice added touch. So why wait? Pick up a Matrix Arms 80% Lower Receiver today and get started on your dream AR-15 build!

Video review

Pros:
  • Forged from 7075-T6 aluminum for strength and durability
  • Black anodized finish for a sleek, professional look
  • Stamped with S & F on both sides
  • No FFL is required, so you can get started on your build right away
Cons:
  • Installation can be tricky for some users

 

5# PO80 80% Lower Receiver

POLYMER80 80% LOWER RECEIVER

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Do you want to create a lightweight AR-15 that maintains strength and integrity? The Polymer80 is perfect for your next build. This 80% lower receiver is made from polymer, making it strong yet lightweight. It also features a flared mag well and beefier mil-spec buffer tube housing to ensure your AR can take everyday wear and tear. Plus, the included jig makes finishing your lower a breeze. Why not act now? Get started on your next build today with the Polymer80.

Pros:
  • Lightweight
  • Flared mag well
  • The beefier mil-spec buffer tube housing
  • Included jig
Cons:
  • May not be as strong as other 80% lower receivers
  • Components may not be of the highest quality

 

6# F-1 Firearms 80% Billet Raw Lower Receiver

F-1 FIREARMS 80% BILLET RAW LOWER RECEIVER

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Looking for a top-quality 80% lower receiver that you can finish yourself? Look no further than the F-1 Firearms 80% Billet Raw Lower Receiver. This lower receiver is machined from 7075-T6511 aluminum and is ready for you to add your finishing touches. It features a skeletonized design and raw finish and is compatible with our complete line of upper receivers. Best of all, no FFL is required to purchase this lower receiver!

Pros:
  • Machined from 7075-T651 aluminum for a top-quality finish
  • Skeletonized design for a lightweight build
  • Raw finish for a personalized look
  • Compatible with all F-1 Firearms upper receivers
  • No FFL required for the purchase
Cons:
  • Not available in a finished form
  • Requires finishing by the user
  • The design may not be to everyone’s taste

 

7# Polymer80 80% Polymer Lower Receiver & Jig Kit

POLYMER80 80% POLYMER LOWER RECEIVER & JIG KIT

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Looking for an easy and affordable way to build your AR-15 rifle? Look no further than the Polymer80 80% Polymer Lower Receiver & Jig Kit. This all-inclusive kit provides everything you need to build your own lower receiver, including the polymer composite receiver, jig, drill bits, and end mill bit. No expensive jig kits or parts are required! The Phoenix, Gen2 version features Polymer80’s proprietary polymer composite construction for a solid core design that is stiffened for superior performance. The pistol grip area features a unique no-thread design for easy assembly. The buffer tube housing is MILSPEC for increased durability. The kit also comes with detailed instructions for a hassle-free build experience. Don’t miss this opportunity to build your AR-15 at a fraction of the cost! The Polymer80 80% Polymer Lower Receiver & Jig Kit is available now and ready to ship. Order today!

Pros:
  • Affordable
  • Convenient to use
  • No expensive jig kits or parts are required
  • Proprietary polymer composite construction
  • The pistol grip area features a unique no-thread design
  • Easy assembly
Cons:
  • Some users have reported issues with the quality of the kit
  • Polymer construction may be too lightweight for some applications

 

8# James Madison Tactical 80% Lower Receiver

JAMES MADISON TACTICAL 80% LOWER RECEIVER

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The James Madison Tactical 80% Lower Receiver is a high-quality polymer lower receiver designed for the AR-15 platform. Engineered and manufactured in the USA, this lower receiver is made from a hybrid polymer that is extremely durable and offers long-term high performance. The lower receiver is reinforced in high-stress areas to ensure reliability and strength and is finished with a Mil-Spec black anodized coating. Whether you’re building your first AR-15 or adding to your collection, the James Madison Tactical 80% Lower Receiver is the perfect foundation for a custom rifle.

Pros:
  • Rugged and durable
  • High-quality design and construction
  • Made in the USA
  • Black anodized Mil-Spec finish
Cons:
  • Maybe less reliable than other options
  • Price is higher than comparables

 

9# Juggernaut Tactical Lower Receiver

JUGGERNAUT TACTICAL LOWER RECEIVER

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If you’re looking for a top-tier lower receiver for your next AR-15 build, look no further than the Juggernaut Tactical JT-15. This precision CNC-machined billet aluminum lower receiver is of the highest quality, and perfect for any high-performance AR-15. Anodized Type 3 hard coat and T6 heat-treated 6061 billet aluminum ensure a long-lasting and durable product, while the integral winter trigger guard provides added strength. The flared mag well improves mag changes, and the laser-engraved JTAC logo adds a touch of style. The broached mag well and threaded bolt catch are just some of the features that make this lower receiver stand out from the rest. You won’t need any roll pins for assembly, and there is a lifetime warranty against manufacturer defects. The Juggernaut Tactical JT-15 Lower Receiver is the perfect choice for anyone looking to build a top-of-the-line AR-15.

Pros:
  • Precision CNC-machined
  • Billet aluminum
  • Hard coat anodized
  • T6 heat-treated
  • Integral winter trigger guard
  • Flared mag well
  • Threaded bolt catch
Cons:
  • Could be more durable
  • Laser engraved logo may fade over time

 

10# Brownells Stripped Lower Receiver Forged

BROWNELLS STRIPPED LOWER RECEIVER FORGED

View on Brownells

The Brownells BRN-180 Lower Receiver is a forged lower receiver that pays homage to Eugene Stoner and Arthur Millerโ€™s original AR-18 rifle designed in 1963. The receiver is constructed from 7075 aluminum forgings and features the cosmetic โ€˜weldโ€™ marks of the stamped originals. The BRN-180 lower receiver utilizes standard Mil-Spec AR-15 lower parts kits and feeds from USGI STANAG style magazines.

Pros:
  • Forged from 7075 aluminum
  • The perfect blend of original styling and design
  • Uses standard Mil-Spec AR-15 lower parts kits
  • Feeds from USGI STANAG style magazines
Cons:
  • May not be as compatible with other parts
  • Some people may not like the cosmetic ‘weld’ marks

 

11# Brownells BRN-7 Stripped Lower Receiver

BROWNELLS BRN-7 STRIPPED LOWER RECEIVER

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Do you want to experience an authentic HK417? The Brownells BRN-7 Stripped Lower Receiver is the perfect piece for your AR lower. This receiver is machined from an original HK417 forging from Germany and has been expertly crafted by Primary Weapons Systems to be as true to the original as possible. Featuring the classic contours of the HK417, this lower receiver is unlike any other on the market. The selector markings are inspired by HK417 markings, with color-filled pictogram markings. And for ultimate authenticity, the FFL information is machined on the front of the magazine well just like on the real HK417. Finally, each receiver receives a matte black Type III anodizing. Get your hands on a piece of history today with the Brownells BRN-7 Stripped Lower Receiver.

Pros:
  • Machined from an original HK417 forging from Germany
  • Expertly crafted by Primary Weapons Systems to be as true to the original as possible
  • Featuring the classic contours of the HK417
  • Selector markings are inspired by HK417 markings, with color-filled pictogram markings
  • FFL information is machined on the front of the magazine well just like on the real HK417
  • Each receiver receives a matte black Type III anodizing
Cons:
  • Not available for purchase in California
  • May not be as durable as others
  • No dust cover or forward assist

 

12# Brownells BRN-10 Lower Receiver

BROWNELLS BRN-10 LOWER RECEIVER

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Looking for a stripped lower receiver that you can build your AR-10 clone around? Look no further than the Brownells BRN-7 Stripped Lower Receiver! This lower receiver includes all of the proprietary BRN-10 parts, such as the magazine release, takedown pins and safety selector. You can also use standard AR-15 trigger components with this receiver. It’s compatible with any standard AR-15/308 buffer tube and stock, too. The BRN-7 is machined from 7075-T6 aluminum and anodized matte black. It’s also only compatible with the BRN-10 Upper Receiver, so be sure to keep that in mind when making your purchase. Pick up your Brownells BRN-7 Stripped Lower Receiver today and start building your very own unique AR-10 clone!

Pros:
  • Machined from 7075-T6 aluminum
  • Anodized matte black
  • Compatible with any standard AR-15/308 buffer tube and stock
  • Includes all of the proprietary BRN-10 parts
Cons:
  • Only compatible with BRN-10 Upper Receiver
  • Does not work with other receivers for the 308 cartridge

 

13# Brownells Brn-180m Lower Receiver

BROWNELLS BRN-180M LOWER RECEIVER

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The Brownells BRN-180M Lower Receiver is a precision machined billet aluminum lower receiver specifically designed to maximize the potential of the BRN-180 line of upper receivers. While it is compatible with Mil-Spec lower receiver parts and triggers, the BRN-180M Lower Receiver features a milled 1913 Picatinny rail section for mounting stocks or braces, an integral oversized trigger guard, and threaded bolt catch pin and captive set screw for the takedown pin detent spring. This durable and well-crafted lower receiver is an excellent choice for your next build.

Video review

Pros:
  • Precision machined from billet aluminum
  • Oversized integral trigger guard
  • Milled 1913 Picatinny rail section
  • Threaded bolt catch pin and captive set screw
Cons:
  • May be incompatible with certain parts
  • Not function with standard AR-15 upper receivers

 

ย How to Finish an 80% Lower? ๐Ÿ”ฐ

๐Ÿ›  Necessary tools:

  • โœ”๏ธ a drill press with various bits and drills;
  • โœ”๏ธ a milling machine with end mill bits;
  • โœ”๏ธ drill stops;
  • โœ”๏ธ other specialized tools to ensure precise measurements during the process.

โœ… Start by drilling out the trigger pin hole using a 1/4″ drill bit set on the lowest speed setting on your drill press for best accuracy results.

โœ… Next, use your end mill bit to remove metal from around the edges of the trigger guard pocket so that it fits flush against the receiver when installed.

โœ… Make sure that all of your cutting edges are straight and even

โœ… The next step is to machine out both sides of the magazine well in order to create space for inserting your magazine when fired. Use either an end mill bit or router bit depending on what type of material your 80% lower is made from โ€“ aluminum or polymer โ€“ and once again remember to keep all cuts clean and even in order to ensure proper function after assembly.

โœ… Finally, install any safety features such as fire control components required by law in order for your AR-15 rifle or pistol build to be legal according to Federal regulations.

โญ• Be sure to check with local laws before beginning this step as they may differ from state to state regarding acceptable firearms configurations allowed within each jurisdiction.

We believe this video can be helpful for you ๐Ÿ“บ

FAQ ๐Ÿค 

What makes a receiver 80%?
A receiver is 80% when it has been machined to 80% of its final size. This means that there is still some additional work to be done, such as drilling the fire control group pocket and installing the fire control group, to make it into a functioning firearm.
Are 80% Lower Receivers legal?

When it comes to 80 per cent lower receivers, the legal status can be a bit confusing.

๐Ÿ”Ž These receivers are not considered firearms by the ATF and are not subject to firearm regulations.

โญ• However, depending on which state you live in, there could be certain regulations that require you to obtain a special license in order to purchase or possess an 80 per cent lower receiver.

โœ… In some states, 80% of lowers are treated as firearms and must be transferred through an FFL (Federal Firearms License) holder, while in other states they are considered firearms accessories and can be purchased without any additional paperwork or licensing. The situation is further complicated by the fact that many states have enacted their own laws regarding the sale and possession of these products.

โœ… A law known as the Undetectable Firearms Act prevents people from creating weapons using 3D printers or milling machines with a plastic material that doesn’t show up on X-Ray scanners. This means that anyone wanting to build a firearm using an 80 per cent lower receiver would need to ensure that their receiver is made up of metal detectable parts.

What can the 80% AR-15 Lower Receiver be used for?
The 80% AR-15 Lower Receiver is a component of the AR-15 rifle and is part of the gun that houses the trigger, hammer, magazine release, safety controls and other components. It can be used to assemble a complete rifle from scratch or to replace damaged or worn parts on an existing AR-15. With some basic tools and knowledge, anyone can finish constructing an 80% lower receiver and build their own firearm in just a few hours.
Are Polymer 80 Lowers Any Good?

โšก One of the biggest advantages of using a Polymer 80 lower is its affordability; they typically cost significantly less than traditional aluminum lowers.

โšก In terms of durability, polymer 80 lowers are rustproof, corrosion-resistant, and can withstand extreme temperatures.

โšก They are also extremely easy to work with when it comes to customizing your AR-15, as most are equipped with jigs that make drilling and cutting easier.

โšก Additionally, these receivers don’t require any special tools beyond a drill press and some cutting tools like an oscillating saw or Dremel tool.

Do you have to put a serial number on an 80% lower?
In most cases, no. 80% lowers do not have to be serialized in most states. However, some states, such as California, do require 80% of receivers to be serialized. Be sure to check with your local laws to ensure you are compliant.

Conclusion ๐Ÿคฉ

80 percent lower receivers offer gun enthusiasts a way to build their AR-15 rifle. There are many different brands and types available on the market, so it can be difficult to determine which one is the best for your needs. In this article, we have reviewed some of the top-rated items and shared some tips on how to choose the right one for you. We hope that you found this information helpful and that it will make the process of choosing an 80 percent lower receiver easier. Thanks for reading! ๐Ÿ”ฅโค๏ธ

Tags: #best quality 80 lower receiver / #best 80 percent lower receiver / #best 80 lower receiver / #best 80 lower receiver for sale / #best 80 lower receiver jig

Zack Buck

Gunsmith, Hunter, Gentleman Adventurer. Life is too short to shoot mass-produced guns. A once-in-a-lifetime hunt deserves a one-of-a-kind gun. Read about me.
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Umazurird
Umazurird
1 month ago

 I found your post to be enjoyable! After using my Anderson lower for several years, it has held up quite well. Although I didn’t invest much in the cosmetic elements, I made sure to prioritize the quality of the upper, BCG, and barrel. Despite firing thousands of rounds, the Anderson lower has remained dependable and meets my needs.

Ronoce
Ronoce
Reply to  Umazurird
1 month ago

I have successfully assembled two firearms using Anderson lowers without encountering any issues. I don’t mind if people continue to criticize Anderson lowers because it helps to maintain their affordability))))

Pleleri
Pleleri
1 month ago

From my experiene -I’ve been using a drill press to mill and drill multiple Polymer 80% Lowers. However, I’ve noticed that when I use 5/32″ and 3/8″ drill bits, the resulting holes for the trigger and safety selector are slightly loose on the polymer lowers.

Wahec
Wahec
1 month ago

I live in Los Angeles, California. Can I buy this things here?

Onideri
Onideri
1 month ago

I’m not sure about the horsepower requirement for the press. I don’t remember the horsepower of my own press without checking it. However, is the horsepower really a crucial factor as long as you proceed slowly? I don’t want to damage the press by operating it at high speeds without sufficient power.

Tomas
Tomas
1 month ago

I have completed several builds using 80% arms, Km tactical billet, and modulus arms billet. Among these, I found the Km tactical billet to be the most preferable due to its billet uppers. I’ve also ventured into working on 1911 and 2011 80%, although they require more effort and money. Despite this, I still find pleasure in undertaking these projects.

Ferkaka
Ferkaka
1 month ago

Thank you for this post! It is really quite good. Throughout my years of experience, I have utilized a combination of forged and billet 6061 and 7075. Despite this mix, I’ve never encountered any issues with them cracking or breaking apart.