SIG Sauer P320 Spectre Comp Blackout 9mm, 4.6 in Threaded Barrel, Optics-Ready Slide, TXG Grip, XRAY3 Sights, 21+1 – Custom Works
The P320 Spectre Comp Blackout from SIG Sauer Custom Works pairs a factory single-port compensator with a 4.6 in threaded barrel and an optics-ready stainless slide. It features the TXG tungsten‑infused X‑Series grip module with laser‑engraved LXG texture, XRAY3 day/night sights with the front sight mounted to the comp, and a flat, skeletonized trigger. This full‑size 9mm ships with two 21‑round magazines and wears a uniform Blackout Cerakote finish.
Built as part of the SIG Custom Works line, this model integrates practical performance touches throughout: lightening windows and front/rear slide serrations, a five‑slot M1913 accessory rail, and ambidextrous/reversible controls. At 8.5 in overall length and 41.8 oz, it is a feature‑rich, ready‑to‑run package with distinctive Spectre Comp construction.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Minor scratches and small blemishes are present on exterior surfaces; overall presentation is consistent with careful prior handling.
What’s Included
- Two 21-round extended steel SIG P320 magazines
- SIG Sauer factory hard case
- SIG Custom Works Certified Custom certificate and documentation
- SIG Custom Works challenge coin
- SIG Sauer decal
The Spectre Comp system uses a factory single‑port compensator with the XRAY3 front sight mounted directly to the comp. This configuration keeps the sight on the comp while the optics‑ready slide cycles, and it preserves a clear sight picture with the included XRAY3 rear sight on the optics cover plate.
The stainless slide is finished in Blackout Cerakote and cut with front and rear serrations plus lightening windows. It includes an optics‑ready cut with a cover plate installed. The frame continues the Blackout theme and adds a five‑slot M1913 accessory rail for lights or other rail‑mounted gear.
The TXG full‑size X‑Series grip module blends tungsten‑infused polymer for a planted feel and is laser‑engraved with LXG texture. A flared magwell speeds reloads. Controls include a reversible magazine release and an ambidextrous slide catch for flexible handling.
At the core is a 4.6 in carbon steel threaded barrel with a 1/2x28 pattern, paired with a striker‑fired action and a flat, skeletonized trigger. Capacity is 21+1 with the included extended magazines. Overall length is 8.5 in, and weight is 41.8 oz. The pistol is made in the USA and identified by SIG Custom Works part number P320V004.




