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KWC SW40F Model Sigma Full Metal Airsoft CO2 Gas Blowback Pistol

ID: 27867 (GP-KWC-12AHN)
4.5 stars, based on 22 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

22 Customer Reviews

(Write a review)

by Benjamin I. on 06/16/2016
"I've had this gun a few months and its a great little sidearm. Weight and feel is very close to the real steel models, and chrono'd 380-395fps right out of the box with .2s. very solid feel, great mags (I have 2 38rd extended mags as well). Fieldstrip is easy, but the takedown lever can be a pain. only complaints are that the standard mag wobbles just a tiny bit in the magwell, and the front sight had a tendency to fall off. I.m replacing the sights (Which are pretty good) with a set of Trijicon night sights I have lying around from my dad's old Sigma. hoping with a little modification they will fit decent. I would definitely recommend this gun if you dont mind it being a little meaty over a 1911 or M9.
by Joshua C. on 06/04/2016
"I purchased this gun to be a side arm with high enough fps to play outdoors. This gun delivers amazing power output, a quick single action trigger, and is very accurate at pistol range. In fact hitting torso sized objects at around 100 ft is possible with .25 gram ammo and some finesse. It is a great looking gun with great intimidation factor as well. The only downside to this gun that I can find so far after owing it for about a month is the magazines. First of all be for-warned the included hex-key magazine cap is made from metal and plastic. After about 5 reloads the hex nut in the center of the magazine cap stripped and now spins freely while the plastic outer portion of the plug including the threads is stuck in the magazine. I read another review where this happened to another gentleman. Thankfully Evike is willing to fix it. So in the mean time I ordered a second magazine. Since the magazine is mostly metal I will be trying to locate full metal magazine caps to replace the stock ones. For now I use the plug that has uses a flange so you can use your fingers to tighten and remove the plug. Having said that both magazines leaked gas initially. I was able to get the second magazine to stop leaking by putting a drop of silicone oil on the tip of the CO2, inserting it into the magazine and letting it leak slowly for about an hour until it stopped. That magazine now works just fine. So in conclusion this is a great gun for the price, just be very careful with the magazines and do not use the included hex nut plastic/metal magazine cap.

Good power
Nice accuracy
Easy to pull trigger for rapid semi-auto fire

Cons: The magazines need after market full metal magazine caps.
Magazines may need intensive lubrication to help with leaking.
by Benjamin I. on 05/22/2016
"Awesome sidearm! Hefty mag and slide make it great to hold, plus the field stripping is very easy, just like the real .40S&W sigma. Accuracy is questionable out of the box because the inner barrel has a lot of play inside the outer barrel. I machined a brass spacer around it and it stays put. Range is extremely good with a fresh canister as well (nails guys even at around 80 feet). My only complaint with the gun is that the safety is extremely hard to engage, and the hop-up is a pain to adjust. Definitely a unique gun in a field of 1911s and M9s. Would definitely recommend it.

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