SIG Sauer P320 Compact 9mm Luger, 3.9 in Barrel, Nitron Slide, 15+1, Modular FCU
This SIG Sauer P320 Compact delivers the P320 platform's modular design in a carry-friendly 9mm format. It features a stainless slide with a black Nitron finish, a 3.9-inch carbon steel barrel, and a polymer grip module around the serialized stainless-steel Fire Control Unit. Ambidextrous slide catch levers, a full-length M1913 rail, and takedown without a trigger pull round out a practical, proven setup. It comes with a factory case and one 15-round steel magazine.
Condition
Overall Condition: Fair condition, showing extensive signs of prior use and handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: The rear sight is missing. Internal parts show rust. The exterior shows wear with scratches and blemishes from prior handling.
What’s Included
- SIG Sauer factory hard case with exterior serial label
- One 15-round steel magazine (marked "MADE IN ITALY")
The P320 Compact centers on SIG's modular, serialized stainless-steel FCU visible through the frame window, allowing the grip module to be changed while maintaining the core fire control system. This configuration is chambered in 9mm Luger and uses a curved, solid trigger in a striker-fired, short-recoil, locked-breech action.
The slide is stainless steel with a black Nitron finish and features front and rear cocking serrations for confident manipulation. A 3.9-inch carbon steel barrel completes the compact-length upper, and the design allows takedown without pulling the trigger.
The polymer grip module has molded SIG SAUER panels and houses ambidextrous slide catch levers with a left-side takedown lever. The stainless receiver and overall build reflect the platform lineage produced in Newington, New Hampshire, USA.
A full-length M1913/Picatinny accessory rail with four cross-slots supports common weapon-mounted lights and lasers. The slide uses dovetail cuts for fixed sights, with a fixed front sight installed.
Capacity is 15+1 with the included magazine. The P320 Compact format balances concealability and control while retaining the platform's hallmark modularity.



