SIG Sauer P320 Full-Size .45 ACP Semi-Automatic Pistol, Nitron Slide, Modular FCU
The SIG Sauer P320 Full-Size in .45 ACP delivers duty-grade firepower in a modular platform that lets you swap grip sizes, slide lengths, or calibers without tools. Its serialized fire-control unit, matte black Nitron slide, and 4.7-inch carbon-steel barrel give this striker-fired pistol the reliability and adaptability that agencies around the world have adopted.
Condition
Overall Condition: Very good – shows only light, superficial signs of prior handling or use. Some mild scuffs are present on the exterior finish but do not affect function.
Bore Condition: Excellent – clean, mirror finish with sharp lands and grooves.
What’s Included
- SIG Sauer P320 Full-Size .45 ACP pistol
- One 10-round factory steel magazine stamped "MADE IN ITALY"
The heart of this P320 is its serialized fire-control unit, allowing the shooter to convert between calibers and grip modules without gunsmithing. This feature lets you tailor the pistol to different roles, from range work to defensive carry, by simply swapping components.
The matte black Nitron-finished slide is machined from stainless steel and wears front and rear cocking serrations for confident manipulation. Inside, a 4.7-inch carbon-steel barrel delivers proven .45 ACP ballistics while maintaining manageable recoil in the full-size frame.
Controls are designed for real-world practicality. The slide-catch lever is fully ambidextrous, and the magazine release is reversible, supporting left- and right-handed shooters alike. Fieldstripping is quick and safe thanks to SIG’s three-point takedown that never requires a trigger press.
A five-slot MIL-STD-1913 rail at the dust cover accepts lights or lasers, and the polymer frame’s high beavertail promotes a solid, high grip. Factory 3-dot iron sights offer a clear sight picture in most lighting conditions.