I Beat a Sig mosquito into submission.

anothernewb

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Feb 21, 2012
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After more work than I really wanted to put into it, and some spare parts (just in case) shipped in from a GSG firefly. I can report that I managed to beat a mosquito into full function.

Took complete disassembly, removal of some unnecessary hardware (mag disconnect), a lot of work polishing everything I could literally find on the little bugger, and no small amount of foul language in the process. but she's got a 5# single action trigger now (albeit still a lot of travel) and will feed (and eject) every brand of 22 I had on hand. Then for some real fun. it went 100 for 100 with automatch. 10 straight mags full with no hiccups.

I'd post a short vid of it here, if I could.
 
Admire your determination. I would have beaten it into something else altogether.
Do have a Trailside that has run from the get-go.
Moon
The Trailside is actually a Hammerli in a cheap suit, so I'd hope so! 😊

I've settled on S&W 422s and the Ruger Standard as the only .22 automatics that don't make me want to throw them downrange.
 
The Trailside is actually a Hammerli in a cheap suit, so I'd hope so! 😊
It's been renamed a couple times,(currently a Walther, I think... 🙄 ) though it isn't really an expensive pistol. It has an amazing bore axis, and feels good in the hand.
Anyway, trying to offer a viable alternative, though a Smith 41 is another way to go.
Moon
 
It's been renamed a couple times,(currently a Walther, I think... 🙄 ) though it isn't really an expensive pistol. It has an amazing bore axis, and feels good in the hand.
Anyway, trying to offer a viable alternative, though a Smith 41 is another way to go.
Moon
Had a 41, it was heartbreaking. Beautiful, uncomfortable, and unreliable. YMMV, of course.
 
You know, I’ve never had a problem with a Walther P22 cycling. Kept clean mine always functioned just fine with anything I put in it.

Of course the downside was the slide kept cracking in half 😟
 
I bought a Mosquito ages ago from a security guard who consigned it. It came with four extra magazines, and the price was a good bit less than a new one would have cost. He said it had gone back to the maker shortly after he bought it for the initial unreliability fix, and I can say it has been pretty darn reliable for me with HV 40 gr rn loads.

But, the trigger is mushy as oatmeal. 😞

I don’t want to invest a bunch of time into a gun I don’t shoot much anyway, so I will leave mine as-is I guess.

Stay safe.
 
But, the trigger is mushy as oatmeal. 😞
I don't think it's possible to get a crisp trigger on the mosquito without some significant re-engineering of the right side frame plate. maybe if you made the plate out of hardened steel instead of cast alum, and redid the geometry of the area the trigger bar runs along. maaaaybe. but that's a $1000 solution for a $10 problem in my book. The sear is just a piece of stamped spring steel anyway. so some simple stoning and smoothing and a little bit of bending plus cleaning the black coating off the hammer hooks has gotten this one as good as I can expect. it's not that mushy, but it is still long.

One thing I have determined after studying the trigger geometry. is NEVER use it in double action. it will literally grind the trigger bar travel surface away and eventually ruin the gun. the bar is steel, and the guide is soft alum. In double action, the upper surface of the slot controls the trigger bar travel, it will grind that surface away, eventually allowing the bar to hop right past the sear, and at that point the only solution is to replace the side panel.

surprisingly enough. after polishing the surfaces of the firing pin block parts to a mirror shine, it's removal did not alter the trigger feel, so I put it back in.
 
Had a 41, it was heartbreaking. Beautiful, uncomfortable, and unreliable. YMMV, of course.
I'm on my second. The first belonged to a buddy...when he was broke, he sold it to me, when he was flush, he bought it back.
Had enough of that, and found a used one, have a heavy and a field barrel for it. I simply don' shoot it as well as I should. We'll see what the future holds.
Moon
 
My Trailside has been good to go since I first got it. Mainly run CCI SV ammo through it and has a scary light trigger.
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