The Sterling Model 300 is a compact, semi-automatic pistol chambered in .25 ACP (6.35mm Browning) caliber. Here are some details about the Sterling Model 300:

- Caliber: .25 ACP (6.35mm Browning)
- Action: Semi-automatic, blowback operation
- Capacity: 6 rounds
- Barrel Length: Approximately 2.75 inches
- Overall Length: Approximately 5 inches
- Weight: Approximately 11 ounces
- Construction: The Sterling Model 300 is typically made with a steel frame and slide.
- Safety: Some models may feature manual safety mechanisms.
- Grips: The pistol may feature synthetic or checkered grips for a secure hold.
- Sights: Fixed front and rear sights for aiming.

The Sterling Model 300 is known for its small size, lightweight design, and ease of concealment, making it suitable for personal protection or as a backup weapon. The .25 ACP caliber, though not as powerful as larger calibers, provides a compact and easily controllable option for shooters looking for a pocket-sized firearm.

If you have any specific questions or require more detailed information about the Sterling Model 300 .25 ACP pistol, feel free to ask!