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Sig Sauer® Compatible Full Size Barrel - P320, Black

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The Sig Sauer® P320 is an extremely versatile pistol. You can undress and redress it all day, and each time, you can end up with a completely different sized pistol. This jack-of-all-trades pistol eliminates the need to have a different sized pistol for each season, manner of dress, and carry method. If you've decided to build one, then start here.

This full-sized P320 compatible barrel is what you need to kick off your build the right way. It's made from 4150V barrel steel. This match grade barrel measures 4.7" in length and also has enlarged feed ramps for reliability in feeding and chambering. It comes in at RC 43-47 on the Rockwell C hardness scale, has a black nitride finish, is chambered in 9mm, is designed for the Sig Sauer® P320 full-sized build in 9mm. See below for more info.


  • Made from 4150V barrel blank
  • 4.7" in length
  • Match grade rifling
  • Enlarged feed ramps
  • Rated at RC 43-47 on the Rockwell C hardness scale
  • Black nitride finish
  • Chambered in 9mm
  • Designed for P320 full-sized 9mm builds

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WARNING: Handling firearms parts and accessories can expose you to lead and other petroleum products known to the State of California to cause cancer and reproductive harm. For more information go to: www.P65Warnings.ca.gov

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