Sig Sauer P320 Spectre Comp Blackout 9mm Full-Size Pistol – 4.6" Threaded & Compensated Barrel, Optics-Ready Slide, 21+1 Capacity
Built by Sig Sauer Custom Works, the P320 Spectre Comp Blackout combines a single-port compensator that cuts muzzle rise by about 30 percent with a tungsten-infused TXG grip module that adds stabilizing weight. The result is a full-size 9mm that runs flat, tracks fast, and arrives ready for optics, lights, and suppressors—all finished in uniform Cerakote Elite Blackout.
Condition
Overall Condition: Excellent – showing only faint signs of prior use or handling. Mild carbon build-up is present around the compensator, and the factory optic cover plate is not included.
Bore Condition: Excellent – clean, mirror finish with sharp lands and grooves.
What’s Included
- Sig Sauer P320 Custom Works Spectre Comp Blackout pistol
- Factory single-port compensator (installed)
- (2) 21-round Sig Sauer steel magazines with extended baseplates
The 4.6-inch carbon-steel barrel is nitride-treated for hardness, threaded 1/2-28 UNEF, and fitted with a removable Spectre compensator that tames recoil without adding length once installed.
Its optics-ready slide accepts ROMEO1Pro and DeltaPoint Pro footprints, features lightening ports to maintain cyclic reliability, and wears aggressive front and rear serrations for confident manipulation.
The TXG tungsten-infused polymer grip module delivers steel-gun stability with polymer ergonomics, enhanced by LXG laser texturing, an extended flared magwell, and an oversized trigger guard for gloved use.
A flat-faced, skeletonized trigger drives Sig’s modular, striker-fired Fire Control Unit for a clean break, while X-Ray3 day/night sights provide a clear aiming reference in any light.



