Sig Sauer P320 Spectre Comp "Blackout" CO2 Blowback Pellet Air Pistol
The SIG AIR P320 Spectre Comp Blackout is what happens when somebody takes the already popular P320 platform and decides the normal version simply wasn’t dramatic enough. Styled after the firearm Spectre Comp series, this .177 pellet-firing CO2 pistol combines proper replica weight and handling with a far more usable shooting system than most blowback BB pistols.
This is not just another generic polymer replica pretending to be tactical because somebody added slide cuts and a flat trigger. The Spectre Comp actually feels substantial in the hand thanks to its full metal slide, aggressive X-Series grip module, and realistic proportions. At just over 1kg, it has enough heft to feel convincing without becoming cumbersome.
The overall look is unapologetically modern. The compensated slide design, flared magwell, deep slide serrations, and textured grip all lean heavily into competition pistol styling, but unlike many “race gun” style replicas, this one still feels practical rather than cartoonish.
What makes the P320 Spectre Comp particularly interesting is that it shoots pellets rather than steel BBs. That means you get a rifled barrel and noticeably better accuracy potential than most blowback replicas, while still retaining realistic magazine handling and recoil operation.
The 20-round Rapid Pellet Magazine system is one of the better modern CO2 magazine setups currently available. The entire drop-out magazine houses both the pellet system and the CO2 capsule, allowing spare magazines to be pre-loaded and ready to go rather than constantly stopping to reload fiddly rotary systems. The built-in cam lever piercing system also means CO2 changes require no tools whatsoever, which immediately makes ownership less irritating than half the market already.
The blowback action gives a satisfying amount of recoil impulse without becoming wasteful or sluggish, and the pistol cycles quickly enough to stay entertaining while still maintaining respectable consistency. The trigger system indexes the magazine during the pull, which is how SIG manages to make a semi-auto pellet system function reliably in this format.
In practical terms, this sits in a very nice middle ground.
Most pellet pistols tend to look either aggressively German or like they escaped from a 1997 shooting club cupboard. Most replica pistols meanwhile prioritise realism but sacrifice accuracy entirely by using smoothbore BB systems.
The Spectre Comp Blackout manages to bridge both worlds surprisingly well. You get a pistol that looks and handles like a modern firearm replica while still being genuinely enjoyable for proper target shooting rather than just emptying CO2 capsules at cans for 10 minutes before getting bored.
The Picatinny accessory rail underneath also gives plenty of room for torches or lasers if that’s your thing, although realistically the appeal of this pistol is the platform itself rather than turning it into a science project covered in accessories.
Specs:
- Calibre: 4.5mm (.177) Pellet Only
- Power Source: 12g CO2
- Magazine Capacity: 20 Rounds
- Approx Shot Count: 20 Shots Per Capsule
- Barrel: Rifled 120mm
- Trigger: Double Action Self-Indexing
- Safety: Thumb Safety
- Action: Semi-Blowback
- Accessory Rail: Picatinny
- Weight: 1.05kg
Included in the Box:
- SIG AIR P320 Spectre Comp Blackout Air Pistol
- 20 Round RPM Magazine
A few things are worth knowing before buying, particularly as no physical manual is included with the pistol and some important details are only covered in the online documentation.
The trigger requires a full deliberate pull each shot as it rotates and indexes the pellet system before firing. Half-pulls or trying to “ride” the trigger like a firearm reset can cause failed indexing or jams. Once you understand how the system works, it becomes second nature, but this is definitely a pellet system first and foremost rather than a true firearm-style trigger.
It is also important to note that the top optic plate screws are decorative only and should not be removed. The pistol visually resembles an optics-ready setup, but UK mounting support for the SIG AIR plate system is currently limited. Realistically, this pistol is best bought as a complete standalone platform rather than as a base for endless upgrades.
And honestly, that’s perfectly fine.
The real strength of the P320 Spectre Comp Blackout is that it already succeeds at what it is supposed to be: a respectable, accurate, modern-looking pellet shooting pistol replica that feels far more premium than most CO2 handguns currently on the market.
Important — read before purchase or storage.
All CO2 and green‑gas/propane powered guns and magazines are pressure systems and must not be stored pressurised for any length of time outside active shooting. Leaving gas installed will compress internal seals, accelerate permanent leaks, and shorten the life of your gun.
Temperature & Pressure Behaviour
CO2 and propane are temperature‑sensitive: they expand and contract with temperature changes. That expansion can force gas past worn seals or, in extreme heat, rupture seals or valves — creating dangerous failures. Keep guns and magazines out of direct sunlight and away from heat sources. Cold temperatures reduce pressure and can cause low power or feed problems, so always test a gas gun in the conditions you intend to use it.Always remove or fully vent gas after use. If you’re not shooting, remove the CO2 capsule or vent/empty magazines. Do not store with gas installed.
Lubrication Recommendations
To protect internals and seals we recommend using gas with added lubricants:-
CO2: use lubricated CO2 capsules — UMAREX branded CO2 is our recommendation.
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Green Gas / Propane: use gas with added lubricant such as Vorsk, UltraAir, Nuprol, or Abbey (Green Gas).
Seal & Lubricant Guidance
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Apply one drop of silicone oil (for polyurethane seals only — usually green or clear seals) to the tip of every 5 CO2 capsules or before long‑term storage to lubricate the piercing nozzle and protect seals.
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For silicone seals (typically semi‑translucent white), only use PTFE‑based lubricants (e.g. Super Lube PTFE). Do not use silicone oil on silicone seals.
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Never use gas cartridges showing rust or visible corrosion.
Leak Expectations & User Responsibility
All gas systems will slowly leak over time. Proper care reduces the rate of leakage but cannot prevent it entirely. Leaving cartridges installed dramatically speeds up seal wear. By using or storing gas guns you accept responsibility for regular maintenance, correct lubricant use, and safe storage.We Test Before Sale
We test every gas‑powered gun prior to dispatch or handover for major leaks and function. This may mean the gun arrives with gas installed — you may choose to use this free gas or vent the gun before storage. Testing does not guarantee seal life or prevent future leaks; seals remain consumable parts.If you’re unsure about seal types, lubricant compatibility, or safe storage, ask us before purchase — we’ll give honest guidance. Failure to follow these recommendations may void warranty or return eligibility where damage is caused by improper storage or lubrication.
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Important Notice for the Purchase and Delivery of Airguns, Pressure Components of Airguns, and Moderators
Effective Compliance with the Violent Crime Reduction Act 2006 (VCRA): Sections 31 and 32
Under the provisions of Sections 31 and 32 of the Violent Crime Reduction Act 2006, which were enacted through "The Violent Crime Reduction Act 2006 (Commencement No 3) Order 2007: firearms measures," specific regulations now apply to air weapons, their Pressure-Bearing component parts, and certain accessories.
Key Points to Note:
Restricted Items:
- Airguns: All airguns are classified as restricted items.
- Pressure-Bearing Parts of Airguns: This includes barrels, cylinders, reservoirs, and pistons.
- Functional Moderators (Silencers/Suppressors): Moderators that reduce the sound of discharge are also classified as restricted items.
Definition and Registration:
- Component Parts: While the VCRA does not explicitly define "component parts," the Home Office interprets this to include pressure-bearing parts such as barrels, cylinders, reservoirs, and pistons.
- Accessories: Only moderators (silencers) require registration by dealers.
Legal Requirements for Transfer:
- In-Person Transfer: It is an offence under the VCRA to transfer these restricted items through standard postal systems or to the end customer directly without the presence of both the buyer and either the seller or a representative of the seller.
- Representatives of the Seller: This can be:
- An employee of the seller who is a registered firearms dealer (RFD).
- Another RFD authorized by the seller.
- An employee of the authorized RFD.
Collection and Delivery Options:
- Collection from Store: Customers are encouraged to collect their restricted items directly from the store where purchased.
- Transfer to Another RFD: Items can be transferred to a local RFD for collection, though the receiving RFD may charge a fee for this service.
- Home Delivery: We offer home delivery through our in-house team to some areas of the UK. However, please note that this service has location restrictions and incurs higher costs due to the need for dedicated transport, making it more expensive than a standard RFD transfer.
For more detailed guidance on purchasing and receiving VCRA Restricted Transfer items, please refer to our comprehensive guide here: VCRA Restricted Transfer Items Buying Guide
