SIG Sauer P320 Compact Nitron .40 S&W 13+1 Striker-Fired Pistol with Night Sights
The SIG Sauer P320 Compact Nitron delivers the P320’s proven modular striker-fired system in a carry-friendly .40 S&W package. A serialized stainless fire-control unit lets owners swap frames, slides, and barrels, while the Nitron-coated slide and factory SIGLITE night sights add real-world durability and low-light capability. This example ships with two 13-round Italian-made Mec-Gar magazines and the original SIG Sauer hard case.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Specific Condition Notes: This pistol displays only minimal handling marks, and the bore is bright and clean.
Bore Condition: Excellent – Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling – Sharp lands and grooves.
What’s Included
- SIG Sauer factory hard pistol case (black)
- SIG Sauer P320 / P320 X-Series Operator's Manual
- Two 13-round factory Mec-Gar steel magazines marked "Made in Italy"
The heart of the P320 system is its removable, serialized stainless steel fire-control unit (FCU), allowing this pistol to accept different grip modules and slides without the need for a gunsmith.
A 3.9-inch carbon-steel barrel is nitride treated and broach-rifled for long service life in the higher-pressure .40 S&W chambering. The compact grip module marked “M” offers a secure hold while keeping overall height easy to conceal.
The stainless steel slide wears SIG’s durable Nitron black finish and features both front and rear cocking serrations plus an external extractor. Five MIL-STD-1913 rail slots on the dust cover accept lights or lasers.
Factory SIGLITE 3-dot tritium night sights provide a clear sight picture in daylight or darkness, and the reversible magazine release supports left- or right-handed shooters. The curved trigger offers a consistent striker-fired break.




