Sig Sauer P320 Full-Size 9mm Luger, 4.7 in Barrel, Black Nitron, Fixed 3-Dot Sights, 17+1 Capacity, Modular FCU
This Sig Sauer P320 Full-Size 9mm stands out for its modular, serialized Fire Control Unit (FCU), robust stainless-steel slide with black Nitron finish, and full-length MIL-STD-1913 rail. It ships in excellent condition with two 17-round steel magazines and fixed contrast 3-dot sights. The factory case label lists SKU 320F-9-B with a printed date of 27-FEB-2024 and matches the FCU window serial.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are minimal markings from previous handling or use. See listing photos for additional visual detail.
What’s Included
- SIG SAUER factory hard case (gray)
- Owner's manual
- Two 17-round steel magazines
The full-size P320 configuration pairs a 4.7 in barrel with an 8.0 in overall length, 5.5 in height, and 1.3 in width for a stable sight picture and controllable handling. The sight radius measures 6.6 in, and standard capacity is 17+1 rounds in 9mm Luger.
Construction features include a stainless-steel slide with a black Nitron finish, a black polymer frame, and front and rear slide serrations. The fixed contrast 3-dot sights provide a clean reference, and the full-length MIL-STD-1913 accessory rail offers five usable slots for compatible lights or accessories.
The striker-fired system uses a curved trigger. Controls include a left-side, push-button magazine release and ambidextrous slide catch levers. This model has no external manual safety.
The modular, serialized FCU enables caliber and size swaps within the P320 family. This U.S.-made example is marked Newington, NH, and corresponds to mfg part number 320F-9-B. The case label shows a printed date of 27-FEB-2024, and the label serial matches the FCU window serial. This slide is the non-optics-cut configuration (non-RXP/X-Series).