SIG Sauer P320 Compact 9mm Luger, 3.5 in Barrel, 15+1, Riton Red Dot, Tritium Front, Modular FCU
This SIG Sauer P320 Compact stands out with a factory-marked slide and barrel, a modular serialized FCU, and a Riton Red Dot Sight installed. It pairs a compact-length grip module and 3.5 in barrel with a matte stainless-steel slide featuring front and rear cocking serrations. The setup includes a tritium TG-H3 front sight and a Riton red dot mounted via a rear-sight dovetail adapter, delivering a ready-to-use, modern defensive configuration made in Newington, NH, USA.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: This firearm is in good shape with minor, superficial scratches and blemishes. The red dot is mounted on a rear-sight dovetail adapter; the slide is not optics-cut and does not use a cover plate. The pistol uses a standard barrel-hood witness port as its loaded chamber indicator.
What’s Included
- Riton micro red-dot sight (installed)
- One 15-round magazine
The Riton Red Dot Sight is installed via a rear-sight dovetail adapter and features the Riton "R" logo on the housing. This provides a clear aiming point in addition to the tritium TG-H3 front sight. The front and rear cocking serrations offer positive manipulation.
Built around SIG Sauer’s modular, serialized FCU, this P320 Compact allows caliber and size swaps within the P320 ecosystem. The compact-length grip module and 3-slot Picatinny accessory rail support practical carry and light/laser attachment options.
The slide is stainless steel with a matte finish and is marked "SIG SAUER P320." The barrel is marked "9mm x 19." Controls include ambidextrous slide catch levers and a reversible magazine release with a left-side button layout from the factory.
Chambered in 9mm Luger, this striker-fired, locked-breech pistol uses a 3.5 in barrel and offers a 15+1 capacity. It was manufactured in Newington, NH, USA, and combines modern features with the proven P320 platform in a compact size.




