The Sig Sauer P320 Spectre Comp CO2 Air Pistol is a high-end, semi-automatic .177 calibre (4.5mm) pellet airgun designed to closely mimic the aesthetics, weight, and handling of the real-steel custom firearm. Launched in early 2026, it features a heavy metal slide, realistic semi-blowback action, and an advanced tool-free CO2 loading mechanism.
Technical Specifications
- Calibre: .177 (4.5mm) Pellet Only
- Power Source: 12g CO2 Capsule
- Magazine Capacity: 20 Rounds (Rapid Pellet Magazine belt system)
- Action: Semi-automatic blowback
- Barrel: 120mm rifled barrel
- Weight: 1.05 kg (approx. 37 oz), offering a realistic firearm balance
- Trigger Pull: Double-action self-indexing, approx. 4.5 lbs
Standout Features
- Integrated Magazine Housing: Unlike older models, both the 20-round pellet belt and the 12g CO2 capsule sit inside a single drop-free unit. This allows you to pre-load and pre-charge spare magazines for fast transitions.
- Patented Cam-Lever CO2 System: Reviewed by Hard Air Magazine as one of the best on the market, this tool-free system punctures the CO2 capsule cleanly using an internal lever, eliminating the need for allen keys.
- Authentic Styling: Built with a full-size metal slide featuring a single-port compensator profile, an under-barrel Picatinny rail, and an X-Series polymer grip module wrapped in custom Spectre-style stippling. [1, 2, 3]
- Toolless Field Stripping: Features a functional takedown lever that allows you to easily separate the slide, barrel, and recoil guide assembly for cleaning or inspection without any equipment.
Crucial Shooting Tips
Because it relies on a self-indexing belt system to cycle pellets, the trigger requires a full, deliberate pull every single time. Attempting to "ride" the trigger or short-stroke it like a traditional cartridge firearm can result in skipping a pellet or causing a jam. While the top slide visually features an optics plate, it is primarily decorative; however, the platform is "optic ready" for specific low-profile sights.
