Sig Sauer P320 Nitron Compact .45 ACP Pistol with Night Sights - Black

The Sig Sauer P320 Nitron Compact in .45 ACP is a striker-fired pistol built for shooters who want serious stopping power in a concealable package. At 7.2 inches overall and 25.8 ounces, this compact handgun splits the difference between full-size control and carry-friendly dimensions—ideal for concealed carry, home defense, or backup duty. The 3.9-inch barrel delivers the ballistic performance of the venerable .45 ACP cartridge, and the 9-round magazine gives you meaningful capacity without the bulk.

What sets the P320 Compact apart is Sig's commitment to safe, intuitive operation. The striker-fire action pairs with a 5-point safety system that includes a striker safety, disconnect safety, and 3-point takedown safety mechanism. Takedown is locked until the magazine is removed and the slide is locked to the rear—no guesswork, no mistakes. When you're ready to clean or maintain, a simple rotation of the takedown lever allows full disassembly without tools or trigger manipulation. The matte black Nitron finish resists corrosion and wear, and the tritium night sights cut through low-light scenarios without batteries or charging.

The P320's modular design is where real flexibility lives. Sig's interchangeable polymer grip modules come in small, medium, and large sizes, so you can dial in the fit that works for your hand geometry—not the other way around. That same modularity means you can reconfigure the pistol for different calibers and sizes down the road, making the P320 a platform that grows with your needs rather than a static tool you outgrow.

Whether you're building a concealed-carry rig, stocking a nightstand, or looking for a dependable service pistol, the P320 Compact combines proven Sig engineering, practical ergonomics, and no-nonsense safety into one serious .45 ACP option.

Key Features

• Striker-fire action with 5-point safety system including striker, disconnect, and 3-point takedown safeties
• Tritium night sights for reliable low-light target acquisition
• Interchangeable polymer grip modules in small, medium, and large sizes for custom fit
• Tool-free takedown with slide-locked, magazine-removed safety protocols
• Matte black Nitron finish for corrosion resistance
• 9-round magazine capacity in .45 ACP
• Compact 3.9-inch barrel; 7.2-inch overall length

Specifications

Frequently Asked Questions

What grip sizes are included with the P320 Compact?

The P320 Compact ships with interchangeable polymer grip modules available in small, medium, and large sizes. You can swap modules to achieve a custom fit without tools.

Is the P320 Compact suitable for concealed carry?

Yes. At 7.2 inches long and 25.8 ounces, the P320 Compact is designed as a compact option that balances concealability with the shooting control and capacity of a larger frame.

Can I disassemble the P320 Compact without tools?

Yes. The takedown lever rotates to allow full disassembly without tools or trigger manipulation. The pistol requires the magazine to be removed and the slide to be locked to the rear before takedown is possible.

What makes the safety system different on the P320 Compact?

The P320 features a 5-point safety system: a striker safety, disconnect safety, and 3-point takedown safety mechanism. This design prevents operation or disassembly without intentional, step-by-step compliance with safety protocols.