Grayguns Sig Sauer P320 Full-Size 9mm with Laser-Sculpted Grip, Lightened Optics-Ready Slide, 4.7 In. Barrel, 4x 21-Rd Mags
This Grayguns-customized Sig Sauer P320 stands out with a laser-sculpted full-size grip module and a Grayguns-branded slide featuring large top and side windows plus an optics-ready cut. It retains the P320 modular FCU chassis in a full-size 4.7-inch 9mm configuration and adds a flat-faced trigger and an extended takedown lever with a thumb shelf. A green fiber-optic front sight, four 21-round magazines, and an appendix IWB Kydex holster complete a purpose-built package.
Condition
Overall Condition: Good condition, showing some 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: There are markings from previous handling and signs of moderate prior use. The bore is bright and clean. Refer to the photos for close-up views of the noted areas.
What’s Included
- Grayguns Sig Sauer P320 full-size 9mm pistol (4.7-inch barrel)
- Four 21-round extended steel magazines (one magazine body marked "MADE IN ITALY")
- Appendix IWB Kydex holster with integrated single magazine carrier and dual metal belt clips
The Grayguns-branded lightened slide uses large top and side windows and an optics cut with the cover plate removed, exposing screw holes and recoil bosses for direct mounting. This slide design reduces reciprocating mass and gives the pistol a distinctive custom profile grounded in practical performance.
The P320’s serialized FCU chassis is configured here in full-size 9mm with a 4.7-inch barrel. Controls include ambidextrous slide catch levers, no manual safety, and an extended takedown lever with a thumb shelf for positive support-hand indexing. The flat-faced trigger provides a straight press consistent with Grayguns enhancements.
Sight alignment is fast and simple with a green fiber-optic front and a plain rear notch. The dust cover integrates a 5-slot MIL-STD-1913 accessory rail for lights or other rail-mounted accessories. The polymer grip module is laser-sculpted by Grayguns for improved traction and control.
Capacity is 21+1 with the included extended magazines. The pistol is compatible with extended 21-round magazines, and this package includes four steel-bodied examples to keep you running at the range or during training. Made in the USA, this build brings together the P320’s modularity with Grayguns’ proven components.