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Yankee Hill Machine Model 57 AR-15 Stripped Billet Lower Receiver, Multi-Caliber

Yankee Hill Machine
Ships from Warehouse 1
Typically ships within 1 to 2 business days when a valid FFL is received
  • All firearm sales are final. NO RETURNS.
  • Return to manufacturer for warranty service.
  • Actual buyer must pickup from FFL dealer who will conduct the background check. Learn more
  • Firearm transfer must be the actual transferee/buyer. Click here to see BATFE form "Transaction Record Part 1".
  • Firearms are only available for purchase online.
Shipping is only $10.00 on firearm orders! No additional shipping cost for more guns on this order.
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  • Purchasing a Firearm Online
The Yankee Hill Machine Model 57 AR-15 stripped lower is one of the coolest looking lowers on the market with an attractively stylized pattern. The Model 57 is perfect for building a unique AR-15 like no other! Let's face it, if you are the kind of person that likes to build their AR-15 from scratch, chances are you aren't doing it to save money. You're doing it so that you can assemble the perfect rifle and not waste time with parts that aren't in line with your vision.

The Model 57 is machined from a solid block of billet 7075-T6 aluminum on the best computer controlled milling machines. Once the lower is passed through the stringent Yankee Hill quality control process, it is coated with a black Mil-Spec Type III hard-coat anodizing. The Type 57 lower accepts all Mil- Spec uppers as well as lower components.

Specifications and Features:
Precision CNC machined
7075-T6 aluminum
Oversized magazine well chambers
Accepts all generations of PMAGs
Accepts all mil-spec upper receivers
Caliber marked MULTI
Hard Type III anodized


Item#: 7-GYHM125BILLET
Buying a Firearm Online is Easy!
  • Add your selected firearm(s) to your shopping cart and check out.
  • Select a local Federal Firearms Licensed (FFL) Dealer that will accept the firearm and complete the transfer. Find a FFL Dealer HERE.
  • If you choose an FFL Dealer that is not on our preferred list, you or your FFL Dealer will be required to fax or email us a signed copy of the Federal Firearms License referencing your Cheaper Than Dirt! order number.
  • Pick up your firearm from the FFL Dealer, who will need to do a background check. Transfer fees may apply.
Buying Firearms on the Internet

Federal law requires firearms to be shipped to FFL Dealers. For an individual to receive a firearm from Cheaper Than Dirt! it must be shipped to an FFL Dealer in your state.

Locating a Federal-Firearm License Dealer (FFL) in Your Area

There are thousands of FFL Dealers in the United States. You may choose an FFL Dealer from our preferred listing or you may find a dealer in your area. To find a list of FFL Dealers in your area area CLICK HERE. If you choose a dealer that is not on our preferred list, either you or the FFL Dealer will be required to submit a copy of the Federal Firearms License referencing your Cheaper Than Dirt! order number. The FFL Dealer will usually charge a fee to conduct the transfer. There are duties that the FFL Dealer is required to do during the process which include a background check. Remember, the FFL Dealer is doing you a favor and the process takes time to complete. Fees can vary so check with the FFL Dealer ahead of time to request a quote on the fees associated with your firearm transfer. The FFL Dealer is in business to make a profit and your internet purchase may be viewed as competition to their retail business. If you feel the fees are too high, you can search for another FFL Dealer.

Completing the Transaction

Once you place the firearm in your cart and checkout you will receive a confirmation email that has your order number and further instructions. We will verify the FFL license and also make the FFL Dealer aware that an order from Cheaper Than Dirt! will soon be arriving for you. Most orders are processed within 2-3 business days from the time we receive and verify the FFL Dealers information. Once shipped, your firearm will arrive at the FFL Dealer within 3-7 days business days. The FFL Dealer will begin processing the shipment. It may be an additional day or so before the FFL Dealer is ready to conduct the transfer of the firearm to you. Call the FFL Dealer and set an appointment to confirm that the firearm is ready to be transferred.

Please note! All Firearm Sales are Final

It is important to thoroughly inspect your firearm before completion of the transfer. Once the firearm is transferred into your name, Cheaper Than Dirt! will not accept a return or exchange under any circumstance. If a defect is discovered after completing the transfer, you must contact the manufacturer directly for repair or replacement.

Total number of Reviews: 2

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4.0 5
"This is a nice billet lower but it is not as nice as MEGA or SEEKINS and it costs the same as they do. If, like me you just have to have one, go ahead but I bet the next one you buy is a seekins!"
5.0 5
"Great fit and finish on my receiver. And mine had a set screw in the rear of the receiver under the takedown pin that allows you to tighten down on your upper so it fits together rock solid. I think this is a feature on the newer YHM receivers. Never had a pair of receivers fit together so tightly."