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KWC Sigma Model SW40F Airsoft CO2 Gas Blowback Pistol

Current Product Price

$170.00

The KWC Sigma SW40F CO2 Gas Blowback Pistol features a metal slide and barrel, heavyweight construction, ergonomic grip, and realistic CO2-powered blowback action.

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SKU: 27867 Categories: , Tags: , Brand:
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KWC SIGMA MODEL SW40F CO2 GAS BLOWBACK AIRSOFT PISTOL

HEAVYWEIGHT BUILD / HARD-KICK BLOWBACK / CO2 POWER

METAL SLIDE • METAL BARREL • METAL MAGAZINE • ERGONOMIC GRIP • UNIQUE SERIAL NUMBER • REAR SLIDE SERRATIONS

KWC // SIGMA SW40F // CO2 // GAS BLOWBACK // METAL SLIDE // HEAVYWEIGHT // APPROX. 400 FPS

The KWC Sigma Model SW40F Airsoft CO2 Gas Blowback Pistol is built for players and collectors who want a substantial full-size airsoft sidearm with strong CO2 operation and realistic mechanical movement.

Rather than relying on an ultra-lightweight construction, KWC gives the Sigma SW40F a metal slide, metal barrel, and heavyweight metal magazine, creating a noticeably substantial feel in the hand.

Add its hard-kick gas blowback action, ergonomic grip, rear slide serrations, detachable magazine, on-frame magazine release, and individually serialized design, and the result is a CO2 airsoft pistol with plenty of character.

Manufacturer information lists the SW40F at approximately 400 FPS in the specified test configuration, making field-limit verification especially important before game use.


SIGMA SW40F

A DISTINCTIVE FULL-SIZE CO2 PLATFORM.

The Sigma SW40F has a profile that immediately separates it from many of the more common airsoft pistol designs.

Its combination of a large slide, ergonomic frame, aggressive rear serrations, and substantial magazine gives the pistol a strong visual presence without sacrificing comfortable handling.

KWC pairs that exterior design with a single-action operating system and CO2-powered blowback, producing a platform designed to provide mechanical feedback every time the action cycles.

For players looking for something different—or collectors expanding beyond the usual pistol platforms—the SW40F offers a distinctive alternative.


METAL WHERE IT COUNTS

HEAVYWEIGHT CONSTRUCTION.

One of the defining characteristics of the KWC Sigma is its use of metal components.

The pistol features a:

METAL SLIDE

METAL BARREL

HEAVYWEIGHT METAL MAGAZINE

Together, these components give the SW40F considerably more substance than an ultra-lightweight airsoft pistol.

The weight of the slide also plays an important role in the character of the blowback action, while the metal magazine houses the CO2-powered gas system.

It’s a combination designed to create a more substantial handling experience.


HARD-KICK BLOWBACK

FEEL THE ACTION CYCLE.

The SW40F features:

REALISTIC GAS BLOWBACK ACTION

As the CO2 system operates, the slide cycles to provide the mechanical movement expected from a gas blowback airsoft pistol.

KWC describes the system as having a hard-kick blowback feel, adding another layer of feedback to the shooting experience.

It is important to remember that blowback operation uses some of the available gas to cycle the slide, so actual efficiency can vary with temperature, cartridge condition, maintenance, and individual pistol condition.


CO2 POWER

CONSISTENT, SELF-CONTAINED OPERATION.

The Sigma SW40F uses CO2 as its power source.

CO2 is commonly used in airsoft pistols because it provides a compact, self-contained power source and can offer useful performance across a range of normal playing temperatures.

However, no gas-powered airsoft pistol is completely unaffected by environmental conditions. Temperature, seals, cartridge condition, maintenance, and firing pace can all influence operation.

Always use the manufacturer-specified CO2 cartridge type and follow the supplied operating instructions.


APPROX. 400 FPS

CHECK YOUR FIELD LIMITS.

Manufacturer information lists the Sigma SW40F at approximately:

400 FPS

Actual chronograph results can vary depending on BB weight, temperature, cartridge condition, chronograph equipment, internal condition, and test procedure.

Because approximately 400 FPS may exceed the pistol limits used by some airsoft fields or events, always chronograph the pistol using the required BB weight and procedure before field use.


ERGONOMIC CONTROL

DESIGNED TO SIT COMFORTABLY IN THE HAND.

A heavyweight pistol still needs to be comfortable to handle.

The Sigma SW40F uses an ergonomic grip profile designed to provide a natural, comfortable hold.

An on-frame magazine release provides straightforward magazine removal, while the detachable magazine keeps the operating layout familiar and practical.

At the rear of the slide, aggressive serrations add visual detail while providing additional grip when handling the slide during normal operation.


UNIQUE SERIAL NUMBER

INDIVIDUAL CHARACTER.

Each KWC Sigma SW40F features its own:

UNIQUE SERIAL NUMBER

For collectors, this is a particularly appealing detail.

Rather than every example appearing completely identical, the individual numbering gives each pistol its own identifier and adds to the overall presentation of the platform.


PERFORMANCE PROFILE

PLATFORM

Manufacturer: KWC
Model: Sigma SW40F
Type: CO2 Gas Blowback Airsoft Pistol
Action: Single Action

CONSTRUCTION

Slide: Metal
Barrel: Metal
Magazine: Heavyweight Metal
Grip: Ergonomic

OPERATION

Power: CO2
Blowback: Yes — Hard-Kick Style
Magazine: Detachable
Magazine Release: Frame Mounted
Listed Velocity: Approximately 400 FPS*

DETAILS

Rear Slide Serrations: Yes
Unique Serial Number: Yes

*Manufacturer-listed performance. Actual velocity varies by test conditions and configuration.


WHAT SETS THE SW40F APART?

HEAVYWEIGHT FEEL — Metal slide, barrel, and magazine create substantial handling.

HARD-KICK BLOWBACK — Mechanical slide movement adds feedback during operation.

CO2 POWERED — Compact gas power system built around CO2 cartridges.

ERGONOMIC GRIP — Designed for comfortable handling.

AGGRESSIVE SERRATIONS — Rear slide serrations combine functional grip with distinctive styling.

INDIVIDUALLY SERIALIZED — Each pistol receives a unique serial number.


 


CO2 & FIELD USE NOTE

Always operate the KWC Sigma SW40F CO2 Airsoft Pistol according to KWC’s supplied instructions and use appropriate airsoft-rated eye protection.

Because the manufacturer-listed output is approximately 400 FPS, verify the pistol with an approved chronograph before game use. Airsoft field limits can vary significantly, particularly for pistols and close-range play.


KWC SIGMA SW40F

HEAVYWEIGHT CO2. HARD-KICK BLOWBACK. DISTINCTIVE SIGMA DESIGN.

The KWC Sigma Model SW40F Airsoft CO2 Gas Blowback Pistol combines the substantial construction many CO2 pistol enthusiasts look for with a distinctive full-size design.

Its metal slide, metal barrel, heavyweight magazine, hard-kick blowback action, ergonomic grip, aggressive rear slide serrations, detachable magazine, and unique serial number give the SW40F an identity that stands apart from more common airsoft pistol platforms.

For customers searching for a KWC Sigma SW40F, SW40F airsoft pistol, KWC CO2 gas blowback pistol, metal-slide CO2 airsoft pistol, heavyweight airsoft pistol, hard-kick GBB pistol, or KWC Sigma SW40F Canada, this model delivers a feature-rich CO2-powered platform with unmistakable character.

KWC / SIGMA SW40F / CO2 / GAS BLOWBACK / METAL SLIDE / HEAVYWEIGHT / APPROX. 400 FPS

Weight1.5 kg
Dimensions12 × 9 × 6 in
Product Specifications

Length: 200mm
Weight: 900g
System: Gas Blowback
Magazine Capacity: 22rds
Gas: Uses 12g CO2 cartridges

FAQ

◉ KWC SIGMA SW40F // FAQ DATABASE ◉

THE IMPORTANT QUESTIONS, ANSWERED.

The KWC Sigma SW40F is a heavyweight CO2-powered gas blowback airsoft pistol combining a cycling blowback action, metal slide and barrel, heavyweight metal magazine, ergonomic grip, and an approximately 400 FPS manufacturer-listed performance figure in the specified configuration.

KWC // SIGMA SW40F

What is the KWC Sigma SW40F?

The KWC Sigma SW40F
is a CO2-powered gas blowback airsoft pistol featuring heavyweight construction, a metal slide and barrel, ergonomic grip, and realistic blowback action.

GBB // CYCLING SLIDE

Is the SW40F a gas blowback pistol?

Yes.
It features a
cycling gas blowback slide
as part of its operating system.

POWER SOURCE // CO2

What powers the KWC Sigma SW40F?

The pistol is
CO2 powered.
Use the manufacturer-specified cartridge type for the pistol.

CONSTRUCTION // METAL SLIDE

Does the SW40F have a metal slide?

Yes.
The SW40F features a
metal slide.

HEAVYWEIGHT BUILD // METAL BARREL

Is the barrel metal?

Yes.
A
metal barrel
is included as part of the heavyweight construction.

MAGAZINE // HEAVYWEIGHT METAL

Is the magazine metal?

Yes.
The SW40F uses a
heavyweight metal magazine.

PERFORMANCE // APPROX. 400 FPS

What FPS does the KWC Sigma SW40F shoot?

Manufacturer information lists approximately
400 FPS in the specified configuration.
Actual chronograph readings can vary.

⚠ FIELD LIMITS // CHRONOGRAPH

Is 400 FPS allowed at every airsoft field?

Not necessarily.
Field and event velocity or energy limits vary, so the pistol should be
chronographed and checked against the rules of the location where it will be used.

ERGONOMICS // GRIP DESIGN

Does it have a comfortable grip?

The SW40F features an
ergonomic grip design
intended to provide comfortable handling.

SLIDE // REAR SERRATIONS

What are the serrations at the rear of the slide for?

The rear slide serrations provide
additional grip during normal slide handling
while also contributing to the pistol’s aggressive appearance.

IDENTIFICATION // UNIQUE SERIAL

Does every SW40F have the same serial number?

No.
Each pistol is listed as having a
unique serial number.

MAGAZINE // DETACHABLE

Is the magazine removable?

Yes.
The pistol uses a
detachable magazine with an on-frame magazine release.

HEAVYWEIGHT // SUBSTANTIAL FEEL

Is this a lightweight pistol?

No.
The metal slide, barrel, and heavyweight magazine give the SW40F a
deliberately substantial feel.

KWC // SIGMA SW40F // CO2 // GAS BLOWBACK

What makes the KWC Sigma SW40F stand out?

The KWC Sigma SW40F combines
CO2-powered gas blowback operation, a cycling metal slide, metal barrel, heavyweight metal magazine, ergonomic grip, rear slide serrations, detachable magazine system, and unique serial numbering.
Its substantial construction and approximately 400 FPS manufacturer-listed performance figure give the SW40F a distinctive presence, while actual velocity should always be confirmed by chronograph and checked against applicable airsoft field limits.

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Product Questions

Important information about ordering, processing, shipping and product compatibility.

Yes. Eligible products can be shipped across Canada. Shipping methods and rates are displayed during checkout.
Standard processing is normally approximately 3–4 business days. Weekends and statutory holidays are not processing days.
Some products require a transfer from our USA warehouse. These orders may require additional processing time.
Yes. Contact our team before ordering for compatibility assistance with rifles, pistols, engines, gearboxes and accessories.
Tracking is normally supplied after processing, packaging and carrier acceptance.
Selected airsoft rifles and pistols may qualify. Eligibility depends on platform, condition and current demand.