The Springfield Armory Hellcat RDP 9mm is a variant of the popular Hellcat series of compact, striker-fired semi-automatic pistols designed for concealed carry and personal defense. The “RDP” designation stands for “Rapid Defense Package,” indicating that it comes equipped with features suitable for self-defense and rapid target acquisition. Here are some key features and information about the Springfield Armory Hellcat RDP 9mm:

1. Caliber: The Hellcat RDP is chambered in 9x19mm Parabellum (9mm), which is a widely popular and versatile ammunition caliber for handguns.
2. Capacity: The standard magazine for the Hellcat RDP typically holds 11 rounds, with an extended magazine available that increases the capacity to 13 rounds. It offers a high capacity for a compact pistol.
3. Barrel Length: The Hellcat RDP features a slightly extended threaded barrel compared to the standard Hellcat models, allowing for the attachment of a suppressor or compensator.
4. Suppressor-Ready: One of the distinctive features of the Hellcat RDP is its compatibility with suppressors. It has a threaded barrel (typically 1/2×28 threads) that allows you to attach a suppressor for reduced noise signature during shooting.
5. Compensator: The Hellcat RDP also comes equipped with a compensator, which helps reduce muzzle rise and recoil, allowing for quicker follow-up shots and improved control.
6. Optical Sight: It features a milled slide for easy installation of micro red dot optics (RDS). This enables faster target acquisition and improved accuracy, especially in low-light conditions.
7. Sights: The Hellcat RDP typically comes with high-visibility, tritium and luminescent front sights and a tactical rack rear sight. This sight setup is optimized for quick target acquisition in various lighting conditions.
8. Adaptive Grip Texture (AGT): Like other Hellcat models, the RDP features AGT on the grip for a secure hold while remaining comfortable for extended shooting sessions.
9. Accessory Rail: The pistol has an accessory rail on the dust cover, allowing for the attachment of lights, lasers, or other accessories.
10. Size: The Hellcat RDP is designed with concealed carry in mind and has a compact and lightweight profile for easy concealment.
11. Safety Features: The pistol includes multiple passive safety features, including a trigger safety, firing pin safety, and grip safety.
12. Variants: Springfield Armory offers various configurations and models of the Hellcat RDP, including those with manual safeties and different sight options.

Always ensure that you are familiar with and comply with local, state, and federal laws regarding the purchase, ownership, and carry of firearms. Additionally, responsible firearm ownership includes proper training in firearm safety and usage, especially when using a firearm for concealed carry and self-defense purposes.