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Take a look at our collection of Glock 21 holsters by Elite Survival Systems. We are one of the biggest Elite Survival Systems vendors in the world - we sell every Elite Survival Systems Glock 21 holster that is still being manufactured. If you should have difficulty selecting the best holster for a Glock 21 firearm, simply call or e-mail OpticsPlanet and one of our product experts will help you find exactly what you desire. Being one of the biggest holster retailers in the world, OpticsPlanet offers more Glock holsters than pretty much any other online retailer. Also, don't forget to visit our diverse assortment of Glock add-ons & accessories. To get great deals on Elite Survival Systems Glock 21 holsters, OpticsPlanet is always the correct choice!