The all-new Unorthodox Designs SLAP Loader for Glock® 9mm/.40 S&W Magazines is a versatile and easy-to-use bench loader, designed to ensure user-friendly service with both high-capacity and standard-capacity mags, and deliver lightning-fast reloads and superior stability when it matters most. Featuring a durable polymer housing and a spring-loaded design, this loader quickly and effectively loads one round of 9mm or .40 S&W ammunition into your favorite Glock-pattern double-stack pistol magazine at a time.