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KWC SW40F Model Sigma Full Metal Airsoft CO2 Gas Blowback Pistol

ID: 27867 (GP-KWC-12AHN)
4.4 stars, based on 25 reviews
KWC SW40F Model Sigma Full Metal Airsoft CO2 Gas Blowback Pistol
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KWC SW40F Sigma Full Metal Airsoft CO2 Gas Blowback Pistol

The Sigma is an ergonomic and slick single action hand gun packed with features and power. Powered by co2, the Sigma is independent from temperature, and outputs a whopping ~400 FPS without any modifications. Other features include hard kick realism, superb accuracy, metal slide, ergonomic hand grip, on-frame magazine release, detachable magazine, serrated slide and more!


  • Full metal slide
  • Ergonomic shooter grip
  • On frame magazine release
  • Serrated slide
  • Unique serial number
  • Realistic blowback action
  • Detachable magazine
Length: 200mm
Weight: 900g
Range: 70~100 feet
System: Airsoft Co2 Gas blowback.
Muzzle velocity: 1.4 Joule (360~420 FPS)
Magazine Capacity: 22 Rounds.
BB: 6mm Airsoft bb.
Gas: 12g co2 capsule.
Manufacture: KWC / Taiwan

FPS Range: 360-400

California residents click here for Proposition 65 warning

25 Customer Reviews

(Write a review)

by Paul W. on 07/01/2017
"The KWC has proved to be a great pistol in games and just shooting targets. It is a decently accurate gun (even though the iron sights cannot be moved). It is also powerful and efficient. It looks pretty beast,too. Also it has a good weight that makes it feel more realistic.

The downside is that along the way it lost a piece of metal at the front of the barrel and also nothing can be attached onto it.

Overall it is an all around good gun, and I would recommend it to anyone.
by Cole W. on 03/14/2017
"So far so good shoots 400 fps and has a good take down system. Top slide is a bit wobbly and noisy and the inner barrel is free floating but i fixed that with some carpenters tape barrel spacers. Down side is C02 in mag runs out fast like the gun and all and i think the inner barrel treads are 16mm posative so if your looking for a mock suppressor then you will need a barrel adaptor for this. Like the gun though
by Steven S. on 03/05/2017
"STILL proves to be the best performing CO2 pistol on the market. It was one of my first airsoft guns, and continues to surpass any other pistols I've tried. It is accurate, the mag is high capacity, the mag spring is easy to push down and load BB's, the CO2 LASTS, AND the guns slide has never once prematurely locked back telling me I'm out. It only locks when you are completely out, every time.
--I would only critique its style, grip, and weight. It is not the slickest looking gun, the grip is hard plastic, and the pistol overall could be lighter.

But again, I keep coming back to choosing this CO2 pistol over any others. Most importantly when your out in the field, it performs and is rock solid dependable.

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