Sig Sauer P320 Pro Full-Size 9mm, 4.7 in Barrel, Optics-Ready Slide, Flat Trigger, 3x 17-Round Mags
This Sig Sauer P320 Pro Full-Size in 9mm Luger combines a 4.7 inch non-threaded barrel, an optics-ready slide with cover plate installed, and a flat-faced trigger in a clean, modern configuration. It includes three 17-round magazines and ships in the SIG Sauer factory hard case with the owner's manual. The modular FCU architecture and USA manufacture add practical appeal for shooters who value flexibility and quality.
The Pro-series full-size setup delivers a long sight radius and a controllable balance with its 4.7 inch barrel and striker-fired action. The flat-faced trigger provides a consistent, straight pull. This example is configured without an external manual thumb safety.
The slide features front and rear serrations and an optics-ready cut, currently covered by the installed plate. Factory iron sights offer a clear and simple sight picture.
The black polymer grip module carries molded texture and SIG medallions for secure handling. A three-slot Picatinny-style accessory rail on the dust cover supports common lights and lasers.
Capacity is 17+1, and this pistol includes three steel double-stack 17-round magazines. The serialized modular FCU is visible through the right-side window, reflecting the platform's swappable grip module design. The matte black slide finish and overall black frame present a clean, duty-ready look, and the pistol is made in the USA.
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.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are minimal marks from prior handling and use. Please refer to the photos for additional views of the finish and features.
What's Included
- SIG Sauer factory hard case (gray)
- Owner's Manual
- Three 17-round steel double-stack magazines




