Used Sig Sauer P320 Full-Size 9mm Optics‑ready 4.7" P-320 +2 MAGS & ORIG CASE

Sig Sauer P320 Full-Size 9-mm P-320

How Buying WorksEnding October 18, 2026 at 10:30 PM

Key Features

  • Item Type: Semi Auto Pistols
  • Action: Striker-Fired
  • Manufacturer: Sig Sauer
  • Capacity: 10 1
  • Model: P320
  • Barrel Length: 4.7"
  • Caliber: 9mm Luger
  • Finish: Black
  • Overall Condition: Very Good

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Product Description

    SIG Sauer P320 Full-Size 9mm Luger, 4.7 in Carbon Steel Barrel, Black, Optics-Ready Slide, 10+1, Two 10-Round Mags

    This SIG Sauer P320 Full-Size stands out with a 4.7 in carbon steel barrel with a nitride-type finish, modular FCU design, and an optics-ready slide that retains steel 3-dot sights. It is a striker-fired, locked-breech 9mm with a 10+1 capacity and comes with two 10-round steel magazines. The black glass-reinforced polymer frame features an integral 1913 rail and bilateral slide catch levers, with build markings from Newington, NH, USA.

    Condition

    Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.

    Bore Condition: Excellent - Clean, mirror finish, no signs of wear.

    Bore Rifling: Excellent Rifling - Sharp lands and grooves.

    Specific Condition Notes: The exterior shows a few small surface marks consistent with light handling. The bore presents a bright, reflective finish.

    What’s Included
    • SIG Sauer factory hard case
    • Two 10-round steel magazines marked 'MADE IN ITALY'

    The full-size P320 configuration pairs a 4.7 in carbon steel barrel with a nitride-type finish with a 9mm Luger chambering for a 10+1 capacity. Its striker-fired, short-recoil, locked-breech action delivers the familiar P320 fire control with no manual safety.

    The slide is finished in black with front and rear cocking serrations and an optics-ready cut topped by a cover plate. Steel 3-dot sights provide a clear picture, and the sight radius is approximately 6.64 in.

    The black, glass-reinforced polymer frame houses SIG's Modular Fire Control Unit, visible through a right-side FCU window. Controls include bilateral slide catch levers and a left-side magazine release. An integral 1913 accessory rail with six slots supports common rail-mounted accessories.

    Two 10-round steel magazines are included and are marked 'MADE IN ITALY' with witness holes to 10. The FCU serial plate displays '58J703412'; 'NEWINGTON, NH, USA' appears on the frame adjacent to the window, and the pistol is made in the USA.

Specifications

Item TypeSemi Auto Pistols
ManufacturerSig Sauer
ModelP320
SubmodelFull-Size
Caliber9mm Luger
Overall ConditionVery Good
Bore ConditionExcellent
ActionStriker-Fired
Capacity10 1
Barrel Length4.7"
FinishBlack
Sight/Optic3-dot
What's IncludedSig Sauer Hard Case
Country of OriginUnited States