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3rd Gen Tactical AR-15 Humboldt Billet Lower Receiver

AR-15 Stripped Lower Receiver

In stock

Available for In-Store Purchase and Ships from Auburn, WA

Ships from Distribution Facility

FFL Required Before Shipping.
Please have your dealer email a copy of their FFL to [email protected] or fax it to 253-218-2998, referencing your name and order number.


Their pride and joy, 3rd Gen Tactical presents to you the Humboldt Lower Receiver. Engineered out of 7075-T6 Aircraft grade billet aluminum and milled to absolute perfection for superior quality and guaranteed performance. Each of their Humboldt Lower Receivers goes through a rigorous five step finishing and inspection process, to ensure superior quality to anything you have ever held in your hands. Designed to be compatible with your existing AR-15 components and engineered to increase the performance of your firearm, the Humboldt is the only lower receiver you will ever need.



  • Engineered for high performance
  • Mil-Spec
  • Customizable for your needs



  • Weight: 0.4 lbs
  • Dimensions: 7.75 × 1.5 × 4.25 in
  • Material: 7075-T6 Aircraft Grade Billet Aluminum
More Information
Product Type AR-15 Stripped Lower Receiver
Manufacturer 3rd Gen Tactical