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Check out our collection of Specter Gear holsters for Glock 21 firearms. As a leading dealer of Specter Gear holsters, OpticsPlanet has access to the complete Specter Gear Glock 21 holster catalog. If you need any help selecting a holster for your Glock 21 firearm, our product support experts are ready to give you a hand. When it comes to selecting a holster, OpticsPlanet has a larger number of possibilities than every other online handgun accessories store. Also be sure to visit our extensive assortment of Glock accessories & add-ons. To get a great deal on Specter Gear Glock 21 holsters, OpticsPlanet.com is always the correct choice!