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Sig Sauer MOS-22-B Mosquito 10+1 22LR 3.9"

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Model: MOS22B
Condition: Factory New
Bud's Item Number: 50931
UPC: 798681303496
MFG: Sig Sauer

*Please Note!! Many of our pictures are stock photos provided to us by the manufacturer and do not necessarily represent the actual item being purchased. Please verify this picture accurately reflects the product described by the title and description on this page before you place your order.

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The hottest pistol offering from SIG SAUER® is the SIG SAUER Mosquito®. Featuring a polymer frame chambered in 22LR, the Mosquito is 90% the size of a P226® and the ideal choice for hours of shooting fun. The Mosquito features a wear-resistant polymer frame outfitted with an integrated accessory rail. The slide features adjustable sights, and along with the rugged blowback system, fixed barrel and superior ergonomic grip, the SIG SAUER Mosquito delivers traditional SIG SAUER accuracy. Additional safeties include an internal locking device and slide mounted ambidextrous safety.

  Sights Adjustable Rear
  Grips Black Polymer
  Frame Finish Black Polymer
  Slide Finish Blued
  Accessory Rail Yes

Finish Black
Type Semi-Automatic
Action Single/Double
Caliber 22 Long Rifle
Barrel Length 3.9"
Capacity 10 + 1
Safety Ambidextrous
Grips Black
Sights Adjustable
Weight 24.6 oz

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Product Reviews
65 Reviews. Average Rating: 4.5 of 5 Stars! [4.5 of 5 Stars!]
5 stars:
80% (52 of 65)
4 stars:
7% (4 of 65)
3 stars:
3% (2 of 65)
2 stars:
6% (4 of 65)
1 star:
4% (3 of 65)
Reviewed By: Hector G on 01/04/2015 Rating: 5 of 5 Stars! [5 of 5 Stars!]
Great pistol. I've had the same obvious issues as everyone else, but I'm about 1000 rds into it now and Issues almost non existent. Buds was awesome as always!

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Reviewed By: owen w on 08/18/2014 Rating: 2 of 5 Stars! [2 of 5 Stars!]
There's a reason I'm only rating this 2 stars. It should say in the deception that if you want this sidearm to work, you can only use CCI mini mags. I sent it back to the manufacturer twice trying to get help with it. They sent it back both times saying it works fine with mini mags. If there was an option on what ammo was readily available, I'm sure this would be a nice sidearm. Ended up very disappointed with functionality.

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Reviewed By: Jeffrey T on 07/22/2014 Rating: 5 of 5 Stars! [5 of 5 Stars!]
Worked flawlessly out of the box. Very accurate. Very comfortable and ergonomic.

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Reviewed By: randy v on 01/11/2014 Rating: 4 of 5 Stars! [4 of 5 Stars!]
Great little gun, well made and looks good. One thing to note is that I've had SERIOUS loading and jamming problems since day 1. I've been trying to get through a box of 1000rds I picked up of Winchester Super X 40gr high velocity .22lr rounds, sometimes brass ejects only half way and I have to clear it, sometimes the new round refuses to load properly, sometimes the gun doesn't cycle at all. I have yet to buy and experiment with any new ammunition, but I was hoping that buying a Sig and using 'high quality, high velocity' ammunition would work well, and the fact that it does not is very disappointing. It's not that fun to shoot when there are 2-3 misfires out of EVERY magazine I shoot. My belief is that the ammunition I'm using does not pack enough punch to get the slide to kick all the way back every shot and this causes the loading problems. I have cleaned and lubricated it well and have still had problems. Next step is trying different ammunition, if that doesn't work then take the thing to a gunsmith and see if there's some machining to be done to get it to fire properly. Other than that I love the gun, but you should be aware before you buy that there are some issues you're likely going to have to deal with to get it to function the way you expect it to!! Quality of the gun itself is 2nd to none, I would rate it 5 stars except for the jamming, but the gun is so sexy and easy to use I'm still rating it highly.

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Reviewed By: Jonathan H on 11/14/2013 Rating: 5 of 5 Stars! [5 of 5 Stars!]
Almost everything about this handgun is excellent. Excellent sights and it even comes with a spare set. Great accuracy, but lacks in precision (but that's what you get with a .22LR handgun). It's a full-sized handgun and the grip feels great in your hands. And the most important positive thing about this gun is that it is really cheap to shoot. I find myself shooting this gun more because of how cheap it is.

The only negative thoughts on this gun are that it only comes with one magazine and these magazines are not cheap (at least $40 each for a 10rd.). And lastly the use of lead nosed ammunition will cause a lot of failure to feed problems. When I run copper nosed ammunition through the handgun it shoots flawlessly, and it doesn't matter what kind you run. I ran cheap lead nosed ammunition to the expensive CCI and Federal lead nosed ammunition and I was getting failure to feed every other shot. However, when I ran cheap (and very dirty) Remington bulk HP copper nosed ammunition to even the expensive CCI Mini-Mag round copper nosed ammunition it still shot flawlessly. The reason for this is because of the steep ramp that the bullet has to ride up. Lead nosed ammunition is not as smooth as copper nosed ammunition so the lead nosed always get caught on the ramp. One way I've heard to counter this problem is to polish down the ramp or otherwise let nature take its course and shoot a lot to break in the gun. I've heard that some owners shot almost 10,000 rounds to fix the failure to feed problem. I'm taking latter step because its more fun.

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