Guide

    SIG Sauer P320 Spectre Comp RXP (9mm) with ROMEO1PRO: Features, Specs, and Real-World Performance

    SIG Sauer P320 Spectre Comp RXP (9mm) with ROMEO1PRO: Features, Specs, and Real-World Performance

    Introduction

    The SIG Sauer P320 Spectre Comp RXP 9mm + ROMEO1PRO (MPN: P320V006-RXP, UPC: 798681690305) is a factory-tuned, optics-forward P320 built by SIG Custom Works for shooters who want “flat and fast” performance without piecing together a slide, comp, trigger, grip module, and dot separately.

    What sets this model apart is the way SIG blends a compensated top-end with a heavy, tungsten-infused TXG grip module and pairs it with a slide setup designed around the SIG SAUER ROMEO1PRO 1x30mm footprint. The result is a premium P320 that’s aimed at high-tempo range work, competition-style shooting, and confident “do-it-all” ownership—especially for buyers who prefer a complete, factory-integrated system.

    Key Features and Specifications

    Below are the key factory features and the most decision-relevant specs to know before you choose this platform.

    Factory-compensated Spectre Comp configuration

    SIG Custom Works built the Spectre Comp around an integrated compensator design intended to reduce felt recoil and speed up sight recovery. SIG’s release specifically calls out a 30% recoil reduction compared to the already-flat shooting P320 XFIVE Legion baseline, and it also notes that the X-RAY3 front sight is dovetailed directly to the compensator for improved sight tracking during rapid strings. (sigsauer.com)

    TXG tungsten-infused grip module with LXG laser stippling

    The pistol uses SIG’s TXG tungsten-infused polymer grip module (adding mass where it matters) and SIG Custom Works LXG laser stippling to create a locked-in feel without having to add grip tape or aftermarket textures. (sigsauer.com)

    X-Series flat skeleton trigger and TiN gold barrel

    From the factory you get an X-Series flat skeleton trigger (a popular geometry for consistent press and predictable break) plus a titanium nitride (TiN) gold barrel that’s both visually distinctive and easy to spot during press checks and maintenance. (sigsauer.com)

    Optics-ready slide with ROMEO1PRO ecosystem support

    A major value driver is that the “RXP” concept is designed to remove the friction of pistol red dots—mounting and zeroing are what stop many shooters from adopting an optic. SIG’s RXP program is built around delivering a pistol/optic system ready to run from day one. (sigsauer.com)

    For the optic itself, the SIG SAUER ROMEO1PRO 1x30mm features:

    • 1x magnification with a 30mm objective window
    • 12 brightness settings (10 daytime / 2 night-vision)
    • MOTAC (motion-activated illumination)
    • 20,000+ hours runtime (SIG’s stated figure)
    • CR1632 battery
    • IPX-7 waterproof rating (up to 1 meter)
    • SIG’s TruHold Lockless Zeroing System

    These are important for real use because they address the common failure points of pistol dots: battery management, durability, and holding zero under recoil. (sigsauer.com)

    Official dimensions and weight (P320 Spectre Comp)

    SIG’s Custom Works announcement lists the Spectre Comp specs as:

    • Caliber: 9mm
    • Overall length: 8.5 in
    • Overall height: 5.8 in
    • Overall width: 1.6 in
    • Barrel length: 4.6 in
    • Sight radius: 6.5 in
    • Weight (with magazine): 41.8 oz
    • Magazines: ships with (2) 21-round steel magazines (or 10-round options depending on configuration/market)

    These numbers matter because the 4.6"/integrated-comp top end plus the TXG grip module push the gun into a “shoots like a bigger gun” category—excellent for recoil control, less ideal for discreet all-day carry for most users. (sigsauer.com)

    Owner documentation and safety reference

    SIG’s current P320 operator manual includes parts diagrams for both P320-RXP and P320 Spectre compensated slide configurations, reflecting the factory-supported nature of these setups. (sigsauer.com)

    Practical Applications

    1) Fast, trackable shooting for training and high-round-count range sessions

    This platform shines when you’re doing drills that reward recoil management and consistent return-to-dot—Bill drills, transition work, controlled pairs, and “shooting on the move.” The combination of:

    • heavier TXG grip module,
    • integrated compensator,
    • and the wide-window ROMEO1PRO

    generally supports faster split times with less “visual disruption” between shots.

    2) Competition-oriented performance without a custom build

    For shooters who want “custom-pistol behavior” but don’t want to:

    • choose a comp and hope it’s tuned,
    • mix springs and ammo to get reliability back,
    • and then add an optic after the fact,

    the Spectre Comp approach is compelling because it’s a single factory-engineered system with a known optic footprint and proven RXP concept. (sigsauer.com)

    3) Home defense / duty-style staging (where size is less of a concern)

    While many people buy Spectre models for the range, the practical upside for defensive staging is straightforward: the dot helps in low light and awkward positions, the compensator can reduce muzzle rise, and the pistol’s mass can make it easier to shoot well under stress.

    If you intend to stage it with a weapon light, confirm holster/light compatibility carefully—comped slides and full-size optics can narrow holster choices compared to standard-length P320s.

    4) Modular growth path (P320 ecosystem advantage)

    The P320 platform is popular partly because it supports modularity across grip modules, slides, and configurations. If you already own P320-compatible gear (magazines, some holsters, maintenance parts), a Spectre Comp variant can integrate into your existing ecosystem—while still feeling meaningfully “upgraded” in recoil behavior.

    Expert Analysis

    Who this setup is for

    Choose the SIG Sauer P320 Spectre Comp RXP 9mm + ROMEO1PRO if you prioritize:

    • Speed and control over minimum size
    • A factory-integrated dot system rather than aftermarket milling/mounting
    • A pistol that feels settled during rapid fire (TXG weight + comp)

    What to consider before buying

    • Concealed carry practicality: At ~41.8 oz with a magazine (before adding a light), it’s a heavier, longer setup than typical CCW guns. Great to shoot; less convenient to carry. (sigsauer.com)
    • Optic support and maintenance: The ROMEO1PRO’s MOTAC and battery-access design are meaningful, but you should still treat battery replacement as scheduled maintenance (set a replacement interval that matches your usage and verification routine). (sigsauer.com)
    • Holster compatibility: Comped P320s can fit some holsters designed around similar-length slides (SIG notes holster compatibility with P320 XFIVE Legion in its announcement), but always confirm exact fit—especially with an optic and tall sights. (sigsauer.com)

    Recommended setup approach (practical, not brand-dependent)

    • Confirm your preferred dot brightness and establish a consistent zero distance for your use.
    • Verify reliability with the ammo you’ll actually shoot (training and defensive), including a few magazines of rapid strings.
    • If adding a weapon light, select a holster that is light-specific and supports your exact optic height.

    Conclusion

    The SIG Sauer P320 Spectre Comp RXP 9mm + ROMEO1PRO is best understood as a premium, factory-cohesive “shooting performance package.” SIG Custom Works combines a compensator-equipped top end, a TXG tungsten-infused grip module with aggressive LXG texture, X-Series trigger geometry, and a ROMEO1PRO-ready slide concept that reduces the complexity of getting into pistol red dots.

    If your priority is a pistol that shoots flat, tracks predictably, and arrives already aligned with the modern red-dot handgun workflow, this Spectre Comp RXP configuration is a strong choice—especially for range-heavy owners and competition-minded shooters who prefer factory integration over piecemeal customization.

    Sources

    SIG SAUER. "SIG Custom Works Introduces P320 SPECTRE Comp to SPECTRE Series." SIG SAUER Blog. March 1, 2022. https://www.sigsauer.com/blog/sig-custom-works-introduces-p320-spectre-comp-to-spectre-series

    SIG SAUER. "ROMEO1PRO 1X30 MM." SIG SAUER. Accessed May 12, 2026. https://www.sigsauer.com/romeo1pro-1x30mm.html

    SIG SAUER. "Welcome to the Red Dot Revolution: SIG SAUER Introduces the P320 RXP Series for Red Dot Accuracy Right Out-Of-The-Box." SIG SAUER Blog. January 16, 2020. https://www.sigsauer.com/blog/welcome-to-the-red-dot-revolution-sig-sauer-introduces-the-p320-rxp-series-for-red-dot-accuracy-right-out-of-the-box

    SIG SAUER. "SIG P320 Pistols Operator’s Manual: Handling & Safety Instructions (REV16)." SIG SAUER. Published November 2025 (per PDF metadata on site). https://www.sigsauer.com/media/sigsauer/resources/OPERATORS_MANUAL_P320_8501909-01_REV16_WEB_FILE_1.pdf

    SIG SAUER. "ROMEO1PRO 1x30mm Miniature Reflex Sight Owner’s Manual (REV02)." SIG SAUER. Published November 2025 (per PDF metadata on site). https://www.sigsauer.com/media/sigsauer/resources/20SIG3019_ROMEO1PRO_Manual_7401786-01_REV02_HR.pdf