Out of stock
Sig Custom Works P320 9mm/357 Sig/40 S&W FCU | Flat Dark Earth
Out of stock

Sig Sauer Complete Fire Control Unit for 9mm/357 SIG/40 SW P320 Pistols - 8900160

SKU 5655104083
Brand Sig Sauer
Model Number 8900160
UPC 798681633319
Customers must read Compliance Information before purchasing.

Product Details


  • Trigger_Type: Titanium Nitride Skeletonized
  • For Use With: 9mm/357 SIG/40 SW P320 Pistols


From the beginning, the P320 was built to be a pistol that could adapt to meet the user's specific needs. From grip modules and magazines to custom slides, barrels, and optics, the P320 can be configured in thousands of different ways to make your P320 unique and exactly the pistol you are looking for. The P320 CustomWorks Studio FCU program takes that idea and brings it to an unprecedented new level. Take a look at the video to get a more in-depth overview of what this program has to offer. You can also click one of the buttons above to either start building your custom P320 or to purchase your CustomWorks P320 FCU.


  • Exclusive titanium nitride frame
  • Titanium nitride skeletonized trigger
  • Compatible with all 9mm/357SIG/40SW P320 Post-Upgrade accessories


Q & A

Retail Stock


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.
Handling firearms or firearms parts can expose you to lead and other petroleum products known to the State of California to cause cancer, birth defects, or other reproductive harm. Wash hands thoroughly after handling. For more information go to www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).