GSG FireFly Launched

GSG Pistol

American Tactical officially announced the German Sports Guns (GSG) FireFly pistol introduction into the United States market.

If the gun looks familiar to you, it is for good reason. As reported previously, the FireFly is a rebranded version of the discontinued SIG SAUER Mosquito pistol. The Mosquito was manufactured for SIG by GSG. According to GSG, SIG ceased purchasing additional Mosquito pistols in 2015. Subsequently, GSG elected to continue to produce the gun under a new name: FireFly.

Other than the markings on the gun, the FireFly is functionally identical to the original Mosquito. The barrel is made of an unspecified steel and will be available in both threaded and non-threaded versions. Only the 4″ non-threaded model is currently shown on the company’s website.

As with many inexpensive .22 LR handguns, the frame is a lightweight alloy. In the case of the FireFly, the frame is made of a zinc alloy. The same material is used for the slide.

The pistol shown on the company’s website is finished in black. However, American Tactical stated the FireFly will also be sold with tan and green finishes.


  • caliber: .22 LR
  • magazine capacity:  10 rounds
  • barrel length: 4″
  • weight (unloaded): 24.6 oz
  • MSRP: $269.95

While the overall styling of the FireFly is that of a SIG SAUER P-series handgun, this rimfire pistol has a slide mounted manual safety. The gun has a DA/SA trigger.

All I wish is that GSG had referred to SIG discontinuing the Mosquito as a “sudden but inevitable betrayal.”

Richard Johnson

An advocate of gun proliferation zones, Richard is a long time shooter, former cop and internet entrepreneur. Among the many places he calls home is


  • Zachary marrs

    Ah, the mosquito

    • A bearded being from beyond ti

      Don’t make him angry…

  • B.malloy

    Sold my Mosquito. The DA trigger was nigh unusable and the SA was okay at best. Reliability was spotty even with the correct springs and good ammo.

  • Vhyrus

    Oh, so GSG made the mosquito. Is THAT why they sucked so bad?

    • Marcus D.

      Beat me to it. I have one, can’t sell it. I’ve tried, but no shop will take it. Because they suck. And to think Sig lied to me. Mine is a few years older, and they must have done something to the trigger. I was at a range in Chico and had no problem pulling the trigger in DA mode. Mine, not so much. The gun is not accurate, and with every safety device known to man, it is confusing to operate. And the SA trigger is complete mush. The only problem I did not have was cycling. Just “lucky” I guess.

      • iksnilol

        Salvage the components? Use the barrel to make a new .22 LR pistol?

  • Aim to misbehave


    • Parker Brown

      What does that make us?

      • Aim to misbehave

        Big damn heroes

        • Parker Brown

          Ain’t we just?

  • SimonSays

    We had one as a rental/training pistol. The slide was made of such soft metal that failures to eject were gradually wearing out the ejection port, (stovepipes actually dented the port). Also it couldn’t handle fouling from intensive use so we had to take it out of circulation and sell it (cheaply) to one of our members.

    Really bad pistol at that price, you could have so much more gun for that price if you look at the 2nd hand pistols.

  • FightFireJay

    “…the FireFly is functionally identical to the original Mosquito.”

    So basically it will probably fire most of the time using CCI Mini Mags and otherwise won’t work very well at all.

    I have always thought it was a soft spot in Sig Sauer’s lineup.

  • Chris laliberte

    Oh Gawd. The Mosquito was the worst “training” .22 ever. Inaccurate, unreliable, just crap. The GSG 1911 was one of the better .22 trainers I’ve had. Still stunk for reliable feeding, but at least was accurate. Since it’s “still” being made by GSG, I can only guess this will continue to be a lame, inaccurate, unreliable plinker totally useless for training on your SIG. Only “good” .22 trainer I’ve really come across was the conversion slide/barrel for my Beretta 92.

    • jamesone

      I picked up one of the 226 22lr kits and it runs fine. Probably dropped the mosquito because their conversion worked better.

  • Christian Hedegaard-Schou

    I never had the reliability issues of the Mosquito that a lot of others had, but I finally sold it because 1.) HOLY CRAP the most heinous trigger of all time and 2.) The magazines were UNGODLY expensive.

    If it was possible to get one with cheap mags and a much better trigger I would actually consider owning one again.

  • That One Nerd

    +1 for the Firefly reference
    Maybe Sig will start referring to the gun as “GSG’s Grave” 🙂
    It’s a pity that the gun bearing this name really isn’t worthy of it; I liked the show, but I can’t say the same about the gun…

  • DanGoodShot

    It’s BAAACK!! Ahhhhh! Noooooooo!! I almost bought one till I had the chance to try 3, THREEEEEE, different mocrapos at my local range. ALL 3 sucked so bad! I never knew something could suck the sucking out of suck… yeah, no Bueno.

  • Bal256

    Sold my mosquito and got a ruger 22/45. Never looked back. Although I look longingly at the new S&W victory when I have to take the ruger apart to clean.