Sticky Holsters Optics Ready 1 Modified (OR-1 Mod). These holsters will accommodate most firearms and optic setups. We are proud to announce the introduction of our Optics Ready Line of holsters.*Any firearm fitted in an OR-9 holster that has an Olight Pro, Surefire X300 or Streamlight TLR-1 will need an OR-11 Modified holster.