The Sig Sauer P320 Compact is a striker-fired semi-automatic handgun chambered in 9mm, built on the P320's modular FCU platform. It's MA compliant at 10+1 capacity and comes with SIGLITE night sights. 
 
Key Specifications 

• Brand: Sig Sauer 
• Model Name: P320 Compact (MA Compliant) 
• UPC: 798681553372 
• Caliber: 9MM Luger (9x19 Para) 
• Action: Striker Fire 
• Capacity: 10+1 rounds 
• Barrel Length: 3.9 inches 
• Weight: 1.6 lbs (25.8 oz) 
• Finish: Black 
   
  Detailed Features 
  The modular polymer grip frame is interchangeable with other P320 grip modules. SIGLITE night sights are tritium-illuminated for low-light use. The striker-fired mechanism delivers a consistent trigger pull. At 7.2 inches overall the pistol is compact enough for concealed carry while still holding 10+1 rounds.

The P320 Compact 9mm MA Legal gets broadly positive feedback with a few recurring practical concerns.

The grip is frequently mentioned as a highlight — it sits well in the hand and controls naturally. The modular design is a genuine selling point for owners who want to change grip sizes or calibers without buying a new gun.

Trigger pull gets described as smooth and consistent, which most shooters see as an advantage at the range and in defensive use. Accuracy reports are solid.

Weight comes up as a trade-off. At 25.8 oz unloaded it's heavier than competing compact frames, and daily carry users notice it. That said, most consider it acceptable given the size-to-capacity ratio.

Some discussions raise the striker-fired-no-external-safety question. Most users are comfortable with the design, but a small number prefer an external safety for carry and mention this as a drawback.

Holster selection is narrower for the MA-specific variant compared to the standard P320 Compact, which occasionally frustrates users looking for specific configurations.