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San Tan Tactical Lite PILLAR Billet Receiver Set

Manufactured by San Tan Tactical
Manufactured by San Tan Tactical
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Items that are regulated by the ATF have restrictions and requirements: 
•Your entire order will ship only to a Federal-Firearm License holder.
•Please contact your local FFL prior to placing your order to ensure they are still accepting transfers.
•A copy of your order/invoice as well as the current FFL license for your local dealer must be emailed to ffl@primaryarms.com.



The San Tan Tactical STT-15 Lite Pillar Billet Receiver Set was designed from the ground up to be exceptionally lightweight without making any compromises. Each receiver set is precisely machined out of a solid block of 7075-T6 aluminum on state-of-the-art CNC machinery. This allows for a greater degree of precision for extremely tight tolerances and additional features like lightening cuts to reduce weight and an enlarged magazine well and trigger guard. The STT-15L billet AR-15 receiver set from San Tan Tactical offers uncompromising performance, so you can build the rifle you need.

  • Machined from 7075-T6 aluminum
  • Mil-Spec Type III hardcoat anodized black
  • 3D CAD Designed for maximum weight savings
  • Threaded bolt catch pin
  • Compatible with Mil-Spec parts kits
  • .154” trigger pin holes
  • Lightened receiver cuts
  • Enlarged trigger guard and beveled magazine well
  • Receiver tension screw
  • Upper receiver comes assembled
  • Matched set weighs 14.6 Oz

The lower receiver makes assembly easy thanks to the limination of roll pins, but a lower parts kit is still required to finish it. Compatible with all Mil-Spec components like a trigger with .154” pin diameters and ambidextrous safety selectors. However, the upper receiver comes fully assembled with a dust cover, eliminating the forward assist to further improve weight savings. An additional feature of this AR-15 billet receiver set is built in receiver tension screw that can be accessed through the bottom near the pistol grip.

San Tan Tactical believes in carrying on the tradition of American designed and made firearms and that is exactly what they are doing. Their receivers and lower parts are some of the most innovative in the industry and they are proud bring you a product not only made from American sourced materials, but American machinery as well. They take the time to listen to customers critiques and are constantly evolving their products to satisfy your needs.
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BrandSan Tan Tactical
Caliber MarkingMulti-Caliber
FinishHardcoat Anodized
Receiver Material7075-T6 Aluminum
Weight14.6 Oz
Forward AssistIncompatible
Port DoorAssembled with Port Cover

WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, see www.p65warnings.ca.gov

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