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Spear Arms

Spear Arms Premium AR-10 80% Receiver Set - DPMS Gen 1 Style

Product Code : SA80RS10


Matched Upper & 80% Lower receiver set. Matching (Tumbled or Black Anodized)


  • Our AR-10 billet lowers (DPMS style) feature a flared magwell for easy mag insertion and are completely roll pin free!  Our magwells are guaranteed to fit with Lancer, Pmag, and mil-spec metal magazines.

    These lowers are  80% machined and are not considered firearms.  They will ship directly to the customer.

    Made from billet 6061 aluminum, each lower includes our enhancements such as threaded bolt catch pin.

     80% billet AR10 lower for use with 308 or 6.5 creedmoor and other common AR-10 calibers. 

    • Large trigger guard
    • Roll pin free design (includes threaded bolt catch pin)
    • Broached Magwell
    • 6061-T6

    Need a high Quality Lower Parts Kit to complete your build?  Add one to your order and save on shipping! 

    AR-10 Lower Parts Kit Made in USA


Our upper receiver is precision CNC-machined in house from solid billet aluminum. This is a top-tier upper receiver perfect for any high quality AR10 build. We use these on our personal and full guns.

These uppers were created to fit great with our AR-10 lowers but are also compatible with any DPMS Gen 1 AR-10 lower.

  • Unique dust cover design (includes roll pins for ease of assembly)
  • Mil-Std 1913 Picatinny rail
  • Made in the U.S.A. (Texas)!

Determined at checkout.