SIG Sauer P320 Spectre Comp Custom Works 9mm - Full-Size, TXG Grip, Coyote Tan Slide, ROMEO1 PRO, 21+1, Threaded 1/2x28 with Compensator
This SIG Sauer P320 Spectre Comp from SIG Custom Works is a full-size 9mm built for flat, fast shooting. It pairs a barrel-mounted single-port Spectre compensator with a factory 1/2x28 threaded barrel, a TXG tungsten-infused XSeries grip module, and an installed SIG ROMEO1 PRO red-dot. The package includes three 21-round magazines, a factory case, and SIG Custom Works documentation and coin.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Minor, superficial scratches and small handling marks are present on exterior surfaces.
What’s Included
- SIG Sauer factory hard case with matching serialized label
- SIG Sauer ROMEO1 PRO reflex sight with protective shroud (installed)
- Three 21-round steel magazines
- SIG Custom Works Certified Custom card
- SIG Custom Works challenge coin
The Spectre Comp system uses a barrel-mounted, single-port compensator retained by two top screws. The front sight is dovetailed into the compensator, providing a clear, durable index point.
The Coyote Tan slide features lightening windows, forward-angled serrations, and an optic cut. A SIG ROMEO1 PRO open-emitter red dot with a red reticle is installed with its protective shroud. The X-RAY 3 green front sight is present; rear-sight configuration varies with the optic and mounting plate.
The TXG tungsten-infused XSeries grip module in Legion Gray (dark gray) adds mass and stability, with LXG laser-engraved texture and a flared magwell for quick, consistent reloads. An XSeries straight, skeletonized flat trigger complements the striker-fired action.
Capacity is 21+1, and three 21-round steel magazines are included. The dust-cover M1913/Picatinny rail accepts compatible lights or accessories. Made in the USA, this Custom Works model was announced in 2022, and SIG states the Spectre Comp configuration achieves about 30% recoil reduction versus the P320 XFive Legion.




