Description Can be outfitted with any number of reflex style sights that mount directly to the top of the slide, no custom machining required. Interchangeable backstrap. Reversible mag release. Gen4 Rough Textured frame. Dual recoil assembly. Adjustable sights.Specifications:Barrel Length : 6.02Barrel Length Range: 6 to 7.5Caliber-Gauge: 10MMCapacity: 15Finish: BlackHand Gun Web Model: GLOCKÂ 40Specific Caliber: 10mmTactical Firearms, trailers, and some accessories are only available for purchase in stores. Each location follows all BATF and individual state/county/city laws to insure the desired product is legal for sale. Any info provided online is subject to change, please go to your local store for more accurate information.