The Springfield Hellcat OSP (Optical Sight Pistol) FDE Gear Up 9mm is a highly popular micro-compact handgun designed for concealed carry and personal defense. Here's an overview of its features and what the Gear Up package includes:

1. Capacity: The Hellcat boasts an impressive capacity for its size, featuring an 11+1 round configuration with the standard magazine, and up to 15+1 rounds with the extended magazine, thanks to a patented magazine design.

2. Optic Ready: The OSP model includes a factory-milled slide that allows for direct mounting of the smallest micro red dot sights available, offering co-witness capability with the standard U-Notch iron sights which include a tritium front sight for fast target acquisition.

3. Ergonomics: It features adaptive grip texture with a combination of tall flat-topped pyramids and shorter sharp pyramids that enhance grip the tighter you hold it, ensuring a secure and comfortable hold.

4. Safety and Reliability: Equipped with redundant safety mechanisms such as a trigger safety, striker block, and visual loaded chamber indicator, the Hellcat is designed to be drop-safe and reduce the risk of accidental discharge.

5. Durability: Constructed with a hammer-forged steel barrel and a Melonite-coated stainless steel slide, it ensures durability and reliability under various conditions.

6. Accessories: The non-proprietary rail system allows for customization with a variety of aftermarket weapon lights and lasers.

The Gear Up package offers additional value, including:

- Three additional magazines (11-round, 13-round, and 15-round capacities).

- A Springfield Armory soft pistol case.

- A cable lock.

- Owner's manual.

- The entire package is valued at over $150 in additional gear

- Caliber: 9mm

- Barrel Length: 3 inches

- Weight: 18.3 oz (with flush magazine), 18.6 oz (with extended magazine)

- Overall Length: 6 inches

- Width: 1 inch

- Frame Material: Polymer

- Slide Finish: Flat Dark Earth (FDE)

This comprehensive package is ideal for those seeking a reliable, high-capacity micro-compact pistol with the versatility of an optic-ready slide and enhanced ergonomics for everyday carry.