Sig Sauer P320 Full-Size 9mm, 4.7 in Barrel, ROMEO1 PRO Installed, Black, 17+1, Optics-Ready
This Sig Sauer P320 Full-Size 9mm stands out with its factory-installed SIG Sauer ROMEO1 PRO red dot on an optics-ready slide, a 4.7 in barrel, and a 17+1 capacity. It features the P320's modular, serialized stainless-steel FCU and a polymer grip module, with clean Newington, NH, USA markings. Condition is as-new, and it comes with two 17-round magazines and the SIG factory hard case.
Condition
Overall Condition: As-new condition with no signs of prior handling beyond what’s typical from inspection (see photos).
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: This pistol is in fantastic shape, showing only very minimal signs of use beyond factory testing.
What’s Included
- SIG Sauer ROMEO1 PRO reflex sight (installed)
- 2x 17-round steel magazines (Made in USA)
- SIG Sauer factory hard case
The P320 Full-Size configuration pairs a 4.7 in barrel with a full-length slide for a long sight radius (approx. 6.6 in) and stable handling. This example is chambered in 9mm Luger and uses a striker-fired system with a curved trigger, no external manual safety, and a 17+1 capacity.
The slide is optics-ready and features both front and rear serrations. It is marked "SIG SAUER P320" and finished in black, with the chamber marked "9mm x 19." A SIG Sauer ROMEO1 PRO red dot is installed from the factory, complementing the iron sights (front white-dot blade, rear open notch).
The modular, serialized stainless-steel Fire Control Unit (FCU) allows the grip module to be swapped while preserving the firearm’s core serialized component. This pistol has a polymer grip module with molded SIG SAUER panels, ambidextrous slide-catch levers, and a left-side takedown lever.
Practical features include a 1:10 RH twist barrel, a black finish throughout, and an integral MIL-STD-1913 accessory rail with five slots. It is manufactured and marked in Newington, NH, USA, and comes with two Made in USA steel magazines.