80 Lower & 80% Lower Receivers | AR-15 Parts | 80% Arms

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• 80% Arms - 80% Lowers, Easiest 80 Lower Jig & Billet AR-15 Lower Receivers

  The #1 manufacturer of 80% lowers & 80% lower jigs. Home of the fastest router jig for building 80% AR-15 lower receivers and 80% .308 lowers.

• 80 Percent Lower | 80 Lowers | In Stock & Fast Shipping | 80% Arms

  Our 80% lowers are in stock and available today. Shop 80 percent lower receivers with Fast Shipping on AR-15, AR-10, & AR-9 80% lowers and more. Browse more!

• AR15 80 Lower Receivers | AR-15 80% Lowers | 80 Percent Arms

  80% Arms has a great selection of 80 percent lower receivers to complete your AR15. And all our lowers are backed by a lifetime warranty. Start shopping today!

• 80 Percent Lower Kit: Complete Gun Build Kits | 80% Arms

  Whether you are building a gun for the first time or have experience, our 80 percent lower complete gun kits make it easy. Shop our build kits today!

• Glock 80% Polymer Pistol Lowers & Frames | 80 Percent Arms

  Complete your 80% Glock pistol with 80 Percent Arms! Choose from Glock compatible pistol lowers and complete your build at home. Shop today!

• GST-9 Mod100

  Discover the GST-9 MOD100 by 80 Percent Arms, a fully completed firearm that merges unparalleled convenience with unmatched support for the 80% builder community. Designed with precision and your righ...