Description
The SIG Sauer P320 Spectre Comp Blackout 9mm 4.6in 21rd is a full-size, feature-rich polymer-frame pistol engineered for competition and high-performance range work. It ships optic-ready with a drilled-and-tapped slide, XRay3 day/night sights, and a threaded 4.6-inch barrel fitted with a single-port compensator. Two 21-round magazines and a laser-engraved tungsten-infused X-Series grip module come standard.
| Manufacturer | SIG Sauer |
|---|---|
| Model | Spectre Comp Blackout |
| Material | Polymer frame with tungsten-infused grip module (per manufacturer specs) |
| Compatibility | P320 holsters and accessories; optics-ready for RMR, DeltaPoint Pro, and Romeo1 PRO footprints |
| Finish | Black Nitron slide, black polymer frame |
| Weight | 29.5 oz (empty, per manufacturer specs) |
| Condition | New |
Key Features
- Threaded Barrel with Single-Port Compensator — The 4.6-inch barrel is threaded 1/2×28 and ships with a single-port compensator that reduces muzzle rise and keeps you on target for faster follow-up shots. Why it matters: You get match-level recoil control without needing a separate tax stamp or aftermarket part.
- Optic-Ready Drilled-and-Tapped Slide — The slide is pre-drilled and tapped for direct mounting of popular red dot footprints (RMR, DeltaPoint Pro, Romeo1 PRO) with no adapter plate required. Why it matters: Mount your preferred optic in minutes, cutting setup time and maintaining a low bore axis.
- XRay3 Day/Night Sights — Tritium front and rear with high-visibility white rings provide clear sight picture in any lighting. Why it matters: You get reliable low-light aiming without batteries or electronics.
- Laser-Engraved Tungsten-Infused X-Series Grip Module — The tungsten-infused polymer grip adds weight for stability, while the laser-engraved texture gives a secure, tactile surface under recoil. Why it matters: Better grip traction means consistent hand placement and tighter groups during rapid fire.
- 21-Round Magazines (Two Included) — Standard capacity for full-size competition use, with steel body and polymer basepad. Why it matters: Fewer reloads in a stage or range session, plus compatibility with all P320 magwells.
Who It’s For
The Spectre Comp Blackout is built for competitive shooters in USPSA, IDPA, or Steel Challenge who want a compensated gun out of the box. It also fits serious range enthusiasts who train for speed and accuracy and don’t want to piece together a custom build. If you already run a P320 platform, this is a direct upgrade with zero learning curve.
Pros and Cons
- Pro: Factory-compensated design saves you $200+ on aftermarket barrels and comps.
- Pro: 4.6-inch barrel length balances velocity and concealability for a full-size gun.
- Pro: Tungsten-infused grip adds 2-3 ounces of weight for reduced muzzle flip.
- Con: The compensator is pinned and not user-serviceable — if it loosens, you’ll need a gunsmith to re-torque or replace it.
Comparison vs. Competitors
| Feature | SIG Sauer P320 Spectre Comp Blackout | Zev Technologies OZ9 | Agency Arms AOS Glock 17 |
|---|---|---|---|
| Caliber | 9mm | 9mm | 9mm |
| Barrel Length | 4.6 in (threaded) | 4.5 in | 4.49 in |
| Compensator | Single-port, factory-installed | Optional (aftermarket) | Integrated AOS compensator |
| Grip Module | Polymer, tungsten-infused | Aluminum or polymer | Polymer |
| Optic Ready | Yes (no plate) | Yes (plate system) | Yes (AOS plate) |
| Mag Capacity | 21 rounds | 17 rounds | 17 rounds |
| Street Price | $1,429.99 | $1,700–$2,200 | $1,800–$2,500 |
The Spectre Comp Blackout undercuts both competitors in price while delivering a factory-compensated barrel and 21-round magazines. The Zev OZ9 offers an aluminum grip option, and the Agency AOS has a more modular optic system, but neither includes a compensator or high-capacity mags at this price point.
FAQ
Does the SIG Sauer P320 Spectre Comp Blackout come with the compensator installed?
Yes. The single-port compensator is factory-installed on the threaded 4.6-inch barrel. It is pinned in place and does not require a tax stamp or gunsmithing out of the box.
What optics fit the Spectre Comp Blackout slide without a plate?
The slide is drilled and tapped for the RMR, DeltaPoint Pro, and Romeo1 PRO footprints. You can mount those directly using included screws. For other footprints (e.g., Shield RMS), you’ll need an adapter plate.
Is this pistol compatible with standard P320 holsters?
Most full-size P320 holsters will fit, but the compensator adds about 0.6 inches to the barrel length. Check that your holster is open-ended or designed for threaded barrels. We recommend holsters from Safariland or Blackpoint Tactical.
How many magazines are included?
Two 21-round steel magazines with polymer basepads ship with the pistol. These are standard P320 full-size magazines and work with all P320 magwells.
What is the warranty on this firearm?
SIG Sauer offers a limited lifetime warranty on the P320 Spectre Comp Blackout for the original owner. It covers defects in materials and workmanship but not normal wear or modifications.
Trust & Delivery
- ✅ Nationwide delivery (all 50 states)
- ✅ Ships 1-2 business days
- ✅ 30-day returns
- ✅ Secure checkout
Browse more in our Semi Auto Handguns category, check out Competition Pistols, or see all SIG Sauer products.
Last updated: April 2026
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