Springfield Armory Hellcat Micro-Compact RDP 9mm Luger 3.8in Black Melonite Pistol - 13+1 Rounds - The Hellcat, the highest capacity micro 9mm in the world, comes in a Rapid Defense Package (RDP) configuration. It also features a threaded barrel fitted with a patent-pending, Self Indexing compensator. Made of strong and lightweight aircraft-grade Hardcoat anodized aluminum the proprietary design reduces muzzle rise and keeps you on target, shot after shot. The Hellcat RDP comes with two magazines a patented 11-round mag with pinky extension and a 13-round extended mag. The recontoured for enhanced ergonomics, the Gen 2 trigger offers a more comfortable shooting experience and is a refinement of the most important interface between the pistol and the shooter.