Alien Gear Holsters Rapid Force - Spacer Kit - Black - Bag Packaging Matte Black. To use simply install the spacer between the Rapid Force Holster shell and the QDS Attachment. Instructions included. Specifications for Alien Gear Holsters Rapid Force Spacer Kit w/Bag Packaging: Manufacturer: Alien Gear Holsters Finish: Matte Package Contents: Alien Gear Holsters Rapid Force Spacer Kit w/Bag Packaging Alien Gear Holsters RFPT-SK-BK-B: Rapid Force - Spacer Kit - Black - Bag Packaging Matte Black