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Our Premium Billet 80% Lower has been redesigned with easier assembly in mind. This receiver has been enhanced with a threaded bolt catch release hole. No more roll pins! This enhancement allows for a quicker, simpler install of your lower parts kit with fewer tools required. 100% mil-spec fitment ensures this lower works with all…
Enjoy the classic black look with our .308 80% lower receiver. Made from billet 6061-T6 Aluminum, these are incredibly rugged lowers that are made to last and are anodized black to help protect against corrosion. They are NOT marked with Fire/Safe engraving. Find a lower parts kit to complete your LR-308 80% lower by clicking…
Figure out the look of your next .308 build with our .308 80% raw lower receiver. Made from billet 6061-T6 Aluminum, these are incredibly rugged lowers that are made to last and are unfinished to allow for the durakote, cerakote, or other finish of your choice. This lower does not come marked with Fire/Safe engraving….
Our new and improved billet AR-9 80% lower is here! Featuring an updated design with better aesthetics, a new magazine catch and ejector fasteners, our second generation AR-9 80% lower is better than ever. Made from quality billet 6061-T6 aluminum. Compatible with standard AR-15 lower parts kit components, and all 9mm AR uppers. ONLY compatible…
Our new billet AR-9 80% lower receiver, now available uncoated. Featuring an updated design with better aesthetics, a new magazine catch and ejector fasteners, our second generation AR-9 80% lower is better than ever. We’ve left this lower raw and unfinished, with no coating, so you can apply your own custom finish. Made from quality…
Blemished Billet Premium 80% Lower This receiver is blemished. Surface marks will vary. The lower receiver is fully functional once fabricated, just like any unblemished 80% lower. NOTE: BLEMISHED LOWERS ARE FINAL SALES AND NON-REFUNDABLE. Blemish Billet 80% lower Specifications: For AR-15 builds (5.56/.223/300 BLK/6.5 Grendel) Type III Hard Anodized Billet Color: Anodized Black 100% Mil-Spec Quantity:…
Blemished .308 80% Lower: Small scuffs, 100% performance. Save a couple bucks on your 80% AR-10 build! These blemished .308 receiver blanks feature small surface blemishes, which may include slight scratches or scuffs — but they’re perfectly functional and just as reliable as any other receiver. Combine with an LR-308 / AR-10 rifle kit to…
Blemished AR9 80% Lower Receiver: This receiver is blemished. Marks will vary. The lower receiver is fully functional once fabricated, just like any unblemished 80% lower. This is a NON-REFUNDABLE product. Blemished AR-9 80% Lower Specifications Compatibility: 9mm Parabellum Construction: Billet 6061-T6 Aluminum Finish: Type III Hardcoat Anodizing Color: Matte Black Fitment: 100% Mil-Spec Fire/Safe Engraving: Yes Features: Integrated trigger guard,…
Our updated billet AR-15 billet 80% lower with a quality lower build kit. Grab a quality, mil-spec lower assembly kit built to pair with your new 80% lower and save! This kit contains all components required to assemble the lower half of your custom AR-15 build in one kit. Just finish the lower, put it…
Our new and improved billet AR-9 80% lower, with a quality lower parts kit! Grab our new and improved AR-9 80% lower with a mil-spec lower parts kit thrown in, and save on this bundle! Featuring an updated design with better aesthetics, a new magazine catch and ejector fasteners, our second generation AR-9 80% lower…
Our updated AR-15 billet 80% lower now paired with a quality lower parts kit. Grab a quality, mil-spec LPK to pair with your new 80% lower and save! We’ve bundled a quality parts kit with our new billet lower to offer a convenient 2-for-1 package that makes your custom AR-15 build easier and more affordable….
Our new and improved billet AR-9 80% lower, in a full lower build kit! Our new and improved AR-9 80% lower now comes available with a full lower build kit! Includes an LPK, 9mm buffer kit, and SBA-3 brace! Featuring an updated design with better aesthetics, a new magazine catch and ejector fasteners, our second…
A billet 80% lower affords some unique advantages over the traditional forged unit: Since the entire receiver blank is precisely cut using CNC machines from one piece of 6061-T6 aluminum, more complex shapes and aesthetic considerations can be made. Our billet lowers feature broached mag wells, integrated and heavy-duty trigger guards, and most importantly, threaded fittings for some of the original roll pin fixtures found in your lower parts kit. If you’ve ever installed an LPK before, you’ve probably learned that trying to punch those tiny lil’ pins in place can be a pain.
In addition to cool looks and unique features, our billet 80 lowers still sport mil-spec fittings and a proper Type III hardcoat anodized finish. This ensures 100% compatibility with virtually all “retail” factory and aftermarket AR-15 parts, ensuring you can customize your new AR to your liking. Our billet receivers are compatible with all 5.56 NATO, .223 Remington/Wylde, and 300 Blackout configurations. We also introduced the new AR9 billet lower for dedicated 9mm carbine and pistol builds!
Read our in-depth guide comparing billet (6061-T6) aluminum to forged (7075-T6) aluminum here.
Some states have banned 80% lowers and certain firearm parts, or have otherwise restricted the sale and ownership of products we sell. So, be sure to check your local and state laws. We can’t ship our products to certain states. Please check our Shipping & Return Policy before placing an order (see restrictions).
Benefits of a Billet 80% Lower Receiver:
Execute the right to bear arms today. Your build awaits you.
DISCLAIMER: If you are new to the world of DIY gun building, you likely have a lot of questions and rightfully so. It’s an area that has a lot of questions that, without the correct answers, could have some serious implications. At 80-Lower.com, we are by no means providing this content on our website to serve as legal advice or legal counsel. We encourage each and every builder to perform their own research around their respective State laws as well as educating themselves on the Federal laws. When performing your own research, please be sure that you are getting your information from a reliable source.
