Custom molded for a very tight and perfect fit. The ideal accessory for your Glk adding stability and better handing without adding the burden of extra weight. In an emergency situation the last thing you need is a slippery gun. Works well to reduce recoil and makes your following shots more stable in your hand. Excellent quality that DTOM products are known for. Please see other reviews on our Ruger LCP grip sleeve and other holster products to understand our reputation for quality and reliability.