This unique holster design allows you to forget old-fashioned thumb breaks that slow your draw and complicate re-holstering. The patented SERPA Technology lock engages the trigger guard as you holster the pistol and won't let go until you release it. The release is made using your normal drawing motion, with the trigger finger beside the holster body. The perfect retention holster for concealed carry. The weapon can't accidentally leave the holster.Specifications and Features: Attachment Style: Belt Loop Compatible With: Sig Sauer P320 9mm, 4.7 Inch Country of Origin: United States of America Hand: Right Material: Polymer Maximum Belt Width: 1.75 Inches Muzzle: Open Style: Outside the Waistband