SIG SAUER P320 Full-Size 9mm Luger with .40 S&W Caliber X-Change Kit, 4.7-inch Slide, Black, Dovetailed 3-Dot Steel Sights, Accessory Rail
This SIG SAUER P320 Full-Size stands out for its modular setup and included Sig P320 Conversion Kit to 40SW. It is configured in 9mm with a 4.7-inch slide and comes with a full-size .40 S&W upper assembly as a factory Caliber X-Change kit. The pistol features a stainless steel receiver, polymer grip module, dovetailed steel 3-dot sights, and a five-slot Picatinny accessory rail, all housed in a factory case with useful extras.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are minimal markings from previous handling and use.
What’s Included
- Manual: SIG SAUER P320 owner's manual
- Holster: Polymer OWB holster for P320
- Slide Assembly: SIG SAUER P320 full-size .40 S&W slide assembly with recoil spring (Caliber X-Change)
- Barrel: SIG SAUER .40 S&W barrel for P320 full-size
- Grip Module: SIG SAUER P320 full-size polymer grip module (separate, no FCU installed)
- Case: SIG SAUER factory hard case (black, foam fitted)
- Cable Lock: Cable gun lock
- Parts: SIG SAUER KIT-320-SCL slide catch assembly kit(s)
The P320 Full-Size delivers a 4.7-inch slide, striker-fired action, and a stainless steel receiver paired with a black polymer grip module. It uses dovetailed steel 3-dot sights with a rear marked 'MH3 AP' and features both front and rear slide serrations for confident manipulation. A five-slot Picatinny accessory rail on the dust cover supports common weapon lights and accessories.
This pistol is configured in 9mm Luger and follows the P320's double-stack magazine pattern. It ships with one 17-round 9mm magazine and two 14-round magazines. The frame module includes molded SIG SAUER grip panels for a secure hold, and the design omits an external manual safety for a clean, consistent control layout.
Modularity is a highlight: a factory SIG SAUER P320/P250 Caliber X-Change kit to .40 S&W is included. You get a full-size .40 S&W upper assembly with barrel and recoil spring, plus a separate full-size grip module. The serialized fire control unit (FCU) is visible through the window and the FCU window is marked EXETER, NH.
Additional details include the United States country of origin and a factory case label showing model code 320F-40-BSS dated 31-MAR-2016. The package is rounded out with the SIG SAUER P320 owner's manual, cable lock, polymer OWB holster, and SIG SAUER KIT-320-SCL slide catch assembly kit(s).