Sig Sauer P320 Full-Size .40 S&W Striker-Fired Pistol with 4.7" Barrel & Two 14-Round Magazines
The Sig Sauer P320 Full-Size in .40 S&W offers the proven P320 modular fire-control system in a hard-hitting caliber that is no longer in current production, making this factory .40 variant increasingly scarce. Its stainless-steel fire-control unit allows caliber and grip-size swaps, while the Full-Medium grip module, 4.7" barrel, and 14+1 capacity deliver service-grade performance. Forward and rear slide serrations, steel 3-dot sights, and ambidextrous controls round out a versatile sidearm that comes with its original case, two factory magazines, and three holster options.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Good – Clean, well-maintained, minor wear marks.
Rifling Condition: Good Rifling – Intact, well-defined lands and grooves.
Specific Condition Notes: The pistol is in solid functional shape. There are visible scratches and finish blemishes on the slide and frame. The bore is clean and shiny.
What's Included
- Original SIG Sauer hard case
- SIG Sauer P320 owner's manual
- 2 factory SIG Sauer 14-round steel magazines
- SIG Sauer injection-molded paddle holster
- Kydex OWB holster
- Leather/Kydex hybrid IWB holster
- Steel cable lock with keyed padlock
This P320 uses Sig Sauer’s serialized stainless-steel fire-control unit, allowing the owner to switch calibers and grip modules without visiting a gunsmith. The included Full-Medium polymer grip delivers a balance of reach and control for most shooters.
A 4.7" carbon-steel barrel and 14-round magazine maximize ballistic performance in the .40 S&W chambering while maintaining service-pistol handling. The variant was discontinued around 2020, adding collector interest for anyone seeking a factory .40 P320.
Ambidextrous slide-catch levers and a reversible magazine release make the pistol fully left- or right-hand friendly. A tool-less takedown lever allows fieldstripping without pulling the trigger, streamlining maintenance.
The matte-black slide features forward and rear serrations for confident press checks, an external extractor, and fixed steel 3-dot sights. An integral five-slot Picatinny rail on the dust cover accepts lights or lasers for duty, home defense, or range use.