In stock
San Tan Tactical PILLAR Billet Upper Receiver - STT-PILLAR-1
In stock

San Tan Tactical PILLAR Billet Upper Receiver - STT-PILLAR-1

Regular Price $243.99 Special Price $227.99
SKU 5165450862
Brand San Tan Tactical
Model Number STT-PILLAR-1
UPC 680599034060
Customers must read Compliance Information before purchasing.
This product is fulfilled by a PSA Partner and shipping times may vary.

Product Details


  • Brand: San Tan Tactical
  • Model: PILLAR Billet Upper Receiver
  • Material: 7075-T6 Aluminum
  • Finish: Type III Hardcoat Anodized
  • Weight: 8.2 oz.
  • Compatibility: AR-15/M16/M4


When San Tan Tactical started designing their PILLAR upper receivers they knew they had to make theirs better and different from everyone else’s.  First they started with the material these receivers are made from, because normally billet is thought of as bulky and heavy. Weighting in at 8.2 oz., The PILLAR Upper definitely isn’t heavy! They designed their uppers to be the bare necessities of durability. San Tan Tactical got rid of all the extra billet that makes an upper heavy and reinforced the areas that see the most action.

The lightweight design isn’t the only thing people will notice. The truss pockets are a sure show stopper. Today’s shooters like to run 15” and 16” long rails and grip the rail as far out as possible for more control. STT understands this shooting style and made their truss design similar to that of a bridge. This bridge design evenly distributes stress across the entire platform, instead of putting all of the stress on the material behind the threads. This extra strength not only helps your receiver, but it also helps improve your accuracy.

Overall, San Tan Tactical strives to offer shooters something that is more than just a good looking upper. They design their uppers with their customers in mind, and try to address and fix issues that shooters face when buying and using AR parts.


Q & A


All NFA Rules Apply.
These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.