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Sig Mosquito has near catastrophic failure.

14 Responses to “Kaboom”

  1. BalloonGoesUp Says:

    My father gave a Sig Mosquito to my sister to carry (she only carries .22lr’s and it is better than a sharp stick) She hated it and gave it back.

    Then he gave it to me for my wife to learn to shoot with, we both hated it and gave it back.

    Obviously my father doesn’t like it because he keeps trying to give it away and can’t!

    I am glad nobody got hurt, but that is not a firearm worthy of the Sig name.

  2. mike w. Says:

    I love the one guy in the thread who says he can’t imagine Sig would make a gun out of ZAMAK. Funny, because that’s exactly what the Mosquito slide is made out of. ZAMAK = potmetal.

    Even the slide on my .22 Bersa isn’t made out of that junk.

  3. John Says:

    I had that same failure on a completely different pistol a few weeks ago: my beloved P22.

  4. Weer'd Beard Says:

    John I belive the Mosquito, P22, and S&W M&P22 are all made by the same company.

    Its too bad they’re such crappy guns, they look and feel nice.

  5. Weer'd Beard Says:

    Gawd! This is why I don’t read Forums anymore. Lots of people recommending replacement with the M&P22 (made of the same junk) and at least one person recommended the Chiappa 1911.

    The signal to noise ratio in forums is just too high for my tastes…

  6. mike w. Says:

    Funny thing, you can get a Bersa / Firestorm FS22 without a junk slide for ~$250-$275 and yet like Weer’d noted, every single suggestion was for him to buy another potmetal gun.

    I almost bought a P22 as my first gun. Slide failures due to the ZAMAK was the one big reason I didn’t.

  7. Kristopher Says:

    Why do these people become dumbasses once they start designing a .22 LR pistol?

    Jennings used pot metal for slides … but they made them thick enough to last the 5000 or so rounds needed to wear out the pistol.

    Weak alloy slides are a failure waiting to happen. Both SIG and Walther are screwing this up hard. You won’t find a Colt Woodsman or a High Standard with a slide failure that big.

  8. Kristopher Says:

    In fact, I defy you to shoot enough bricks through a Woodsman, High Standard, or even a newer Buckmark, to cause a major mechanical favor.

  9. TomcatTCH Says:

    I went to a Buckmark after the miserable failure of a Sig Mosquito.

    Haven’t looked back. The damn thing works, and well. Unlike that damned Mosquito.

  10. Bryan S. Says:

    10,000 rounds isnt anything to sneeze at.

    And it comes down to price. Are you willing to pay $100 or more on top of the 22’s price for a gun that shoots just 22lr?

  11. Beaumont Says:

    Zamak has been used in firearms as far back as the 1950s. When utilized properly, it works fine. As in so many other areas, success lies as much in the effective execution of the design as in the design itself.

  12. Standard Mischief Says:

    There is a class of non-firearm enthusiasts who nevertheless understand the first rule of gunfighting.

    These people will buy a gun, run a few magazines through it, and put the gun in their nightstand. This is the market for the inexpensive zamak gun,

    (Though I must say, it sounds like Sig is just dragging themselves through the dirt if they don’t have a lifetime warranty on the thing. Badge it under a different name at least. You don’t see Ernest & Julio Gallo taking credit for Thunderbird, do you?)

    That being said, I hope Sig at least sells him a new slide at a reasonable price.

    (If not, maybe he can just melt it down on his stovetop and cast himself a new one 😉

  13. Gunnutmegger Says:

    The facts are clear. The P22 and Mosquito both have issues with reliability and breakage.

    The manufacturer uses the zinc alloy Zamak (one of several specific Zamak alloys of Zinc, Aluminum, MAgnesium and Copper) because unlike most metals, zinc does not shrink or expand when it cools from a molten state. Thus, slides can be cast to the exact dimensions of a part. So in addition to the low cost of the material, using Zamak eliminates the need to perform final sizing & fitting on parts.

    I personally won’t buy a gun made from Zamak. I prefer guns that last, and the inherent dangers of firearms call out for an additional margin of error when it comes to strength, and Zamak cannot deliver it.

  14. CapialistPig Says:

    Kristopher said, “Jennings used pot metal for slides but they made them thick enough to last the 5000 or so rounds needed to wear out the pistol.”

    5,000 rounds through a Jennings? That would be an amazing feat! (said by the guy who got more trade-in value for a couple of Lorcin mags than for a Lorcin .380)

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