The Sig Sauer Juliet4 Magnifier provides users the ability to engage longer range targets with more accuracy. When mounted behind a red dot sight, the quick flip away Juliet4 Magnifier allows the user to quickly change from close to long distance targets with a fast, single handed operation. Lens covers protect your lens from spent casings and other debris. Tested to Mil-Spec standards, the Juliet4 Magnifier is built to never let you down. Includes:Flip away mount4 screws (gray nylok patch) for use in 1.41" setting1.53" spacer plate4 screws (red nylok patch) for use in 1.53" setting1.63" spacer plate4 screws (blue nylok patch) for use in 1.63" settingHex tool2 thread in lens coversRear flip up lens coverFeaturesQuick release for easy removal when not in usePowercam 90Adeg flip mountRear flip up lens cover for added protectionThread in lens covers to protect the objective lensWaterproof