XTS Extended Bolt Assisted Release Blue. With the XTS-XBAR you can simply load the next mag without even moving your hand slam that bolt shut and start running rounds again with the XTS XBAR. The XTS-XBAR Extended Bolt Assisted Release wraps around your AR's existing bolt catch and flows down in front of your trigger allowing easy access to both open and close the bolt. Specifications for XTS Extended Bolt Assisted Releases: Manufacturer: XTS Fabric/Material: T6061-T6 Aluminum Gun Make: AR Platform Weight: 0.03 oz Features of XTS Extended Bolt Assisted Releases Fits standard AR platform bolt catch Textured lever fulcrom Package Contents: XTS Extended Bolt Assisted Releases XTS XTS-XBAR-BL: Extended Bolt Assisted Release Blue