The SIG SAUER Mosquito is a scaled down .22lr version of the popular P226. The 90% smaller size Sig 22 has all the controls of the full size pistol with reduced recoil, less noise, and lower cost compared to shooting more expensive 9mm ammunition. The Mosquito has a polymer frame with an accessory rail, a fixed barrel blowback system, 3 dot adjustable sights, and has the feel and accuracy of the full size pistol.
At first glance the little Sig is very appealing. I liked it as soon as I picked it up. It feels good in the hand and looks just like my full size Sig P226. I was excited to take it to the range for testing and practice shots but my range is closed during the Wisconsin deer hunting season. This gave me time to do some research to learn more about the gun. Unfortunately, the more I learned the more disappointed I became. It seems it is prone to feeding and jamming problems. There is a lot of information in the forums about this. It seems the feed ramp is part of the problem and there are many suggestions and examples of how to polish the feed ramp to help remedy the feeding and failure to eject issues. I wish I had done more research before I bought the Mosquito. I bought it because it looked good, and had the Sig Sauer name on it. Fortunately for me, I haven’t fired it yet so I will return it to my local gun shop and buy something else.
At this time I am having second thoughts about returning my new pistol. I viewed a few Sig Mosquito Reviews on YouTube. The problems seem to be very common and at least a few owners have made improvements to the feed ramp and chamber that greatly reduce the failures to feed and failures to eject.
Sig Sauer Mosquito Specifications
- Caliber .22LR
- Action Type DA/SA
- Overall Length 7.2 in
- Overall Height 5.3 in
- Overall Width 1.5 in
- Barrel Length 3.9 in
- Sight Radius 5.5 in
- Weight w/Mag 24.6 oz
- Mag Capacity 10 Rounds
- Sights Adjustable Rear
- Grips Polymer
- Frame Finish OD Green Finish
- Slide Finish OD Green Finish
- Accessory Rail Yes
- Features OD Green Finish, Integral Accessory Rail
- MSRP $419.00
- CA Compliant Yes
- MA Compliant Yes
Sig Sauer Mosquito Price – I found the Sig Sauer Mosquito for sale at my local Scheels gun shop for $349.95. It can be found on the Internet at Buds Gun Shop for $315.00 to $355.00 depending on model with free shipping to your FFL. Gunbroker.com has them ranging in price from $318.00 to $405.00 depending on model.
Sig Sauer Mosquito Take down – Take down is easy. Remove the magazine and check the chamber. Rotate the take down lever forward. Pull the slide assembly rearward and up. The slide comes right off. The pistol comes with two recoil springs that are suited for standard and high power ammunition.
Sig Mosquito Problems – The Sig Mosquito is a disappointment because it doesn’t live up to the expectations of the Sig Sauer name. The Mosquito has problems with jamming problems such as failures to feed, and failures to eject. Buying a gun with the name Sig Sauer on it makes one feel confident however, the Sig 22 Mosquito falls short in reliability. This may be due in part to the heavy slide and the fact that .22 caliber ammunition doesn’t have much power to spare. Compare the mass of a Browning Buck Mark slide and it is easy to understand that the Sig Mosquito has a heavier slide. The slide weight and the poor feed ramp design and finish make the Sig Sauer Mosquito a cool looking and feeling gun that is prone to jams.
Sig Mosquito Barrel – The barrel is secured by two screws. One screws in from the right side and one from the left side. The screw on the right side screws through the barrel mount and into the take down lever. The barrel is easily removed when necessary for cleaning or barrel replacement.
Sig Sauer Mosquito Threaded Barrel – The threaded barrel extends beyond the end of the pistol and is threaded to allow installation of a suppressor. If you don’t have a threaded barrel you can buy a replacement from Gem-tech.com. The present price is $155.00 when they have them in stock.
Sig Sauer Mosquito Suppressor – Sig Sauer Mosquito Silencer – A suppressor is a silencer that screws onto the end of the barrel. That is the purpose of the threaded barrel, to install a silencer. The suppressor for the Sig Sauer Mosquito Suppressor costs about $525.00 from Gem-tech.com.
Sig Sauer Mosquito Laser – A feature of the Mosquito is an integral piccatinny rail that will accept a small laser. Small lasers are available for $35 to $50.
Sig Sauer Mosquito Grips – Decorative wood grips available from grips4u.net in the $100 range.
Sig Sauer Mosquito Sights – The Sig Sauer Mosquito 3 Dot Night Sights make it easy to acquire the target. Accuracy of the Mosquito is quite good although not in the same league with the Browning Buck Mark.
Sig Sauer Mosquito Models – The Mosquito is available in several different models including one with a threaded barrel. The threaded barrel allows the use of a Suppressor and silencer.
To sum up my Sig Sauer Mosquito Review I have mixed feelings about the gun. I like the look and feel of it but I am disappointed that Sig Sauer dropped the ball on reliability. I purchased the Sig Mosquito because of the name Sig Sauer. I own a Sig P226 and I assumed that this pistol was comparable. Not so! There are a couple issues that affect its reliability such as the feed ramp, the chamber, and the slide mass. Feed ramp and chamber polishing provide some improvement but there is still the weight of the slide that must be overcome to complete a cycle.
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