SIG Sauer Mosquito

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SIG Sauer Mosquito Gun Stats

SIG Sauer Mosquito

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The SIG Sauer Mosquito is a blowback-operated, semi-automatic pistol aesthetically based on the SIG Sauer P226, but 10% smaller in size and chambered for the .22 LR cartridge. The pistol is manufactured with an aluminum-zinc alloy slide and polymer frame. The controls are similar to those present on full-size models and include (from front to rear) a left takedown lever, a left decocking lever, reversible magazine catch and ambidextrous manual safety. In addition, the pistol is provided with an integral safety lock located at the rear of the magazine well which when enabled prevents cycling of slide, hammer fall, and trigger action. The pistol is available in five different configurations: Standard model, Sport, Threaded barrel, Two-tone, Reversed two-tone, and four special editions having different colors.

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SIG Sauer Mosquito Specs

1 Brand

2 Category

Technical Data


.22 LR









Barrel Length



25 oz


6.9 Inches




1.3 Inches

SIG Sauer Mosquito Features

The SIG Sauer Mosquito is a polymer-framed, semi-automatic pistol chambered in .22LR with a magazine capacity of 10 rounds.  Designed to mimic SIG’s P220 series of pistols, this gun maintains its inspiration’s trigger style, overall look, and control layout.

SIG Sauer Mosquito Ballistics

.22 LR Ballistic Data
Range (Yards) Drop (inches) Velocity Energy Wind drift (inches) Time (milliseconds)
0 0 0 0 0 0
50 0 0 0 0 0
100 0 0 0 0 0
150 0 0 0 0 0
200 0 0 0 0 0
250 0 0 0 0 0
300 0 0 0 0 0
350 0 0 0 0 0
400 0 0 0 0 0
450 0 0 0 0 0
500 0 0 0 0 0

SIG Sauer Mosquito Capacity

The SIG Sauer Mosquito is chambered in .22LR and uses single-stack magazines.  The Mosquito functions best when using standard velocity ammo.

SIG Sauer Mosquito Ergonomics

The safety on the Mosquito is ambidextrous, however all other controls are not.  The magazine release, de-cocking lever and slide lock are all set up for right-handed use.  The trigger in single-action has a very enjoyable brake, however the double-action trigger pull is incredibly long and heavy.

SIG Sauer Mosquito Fit & Finish

The Mosquito is discontinued (current production is the ATI GSG Firefly) but was offered in a few color options.  These included black, tan, green, stainless, and more, also offered in two-tone.  The overall construction is well executed and it runs best on standard velocity ammo.

Fit and Finish

SIG Sauer Mosquito Concealability

The SIG Mosquito measures 5 inches tall and about 7 inches long.  Concealment is far from impossible, however you will need to choose the right holster and attire to prevent the gun from printing through your clothing.

How much is a SIG Sauer Mosquito worth?

In 2024 a new or used SIG Sauer Mosquito value varies depending on supply and demand. In the last 12 months there is great demand for a SIG Sauer Mosquito and most handguns. The Price for a SIG Sauer Mosquito has increased in cost by $0.00 in 2024 compared to 2023.

Estimated New and Used Values for a SIG Sauer Mosquito Values are based on a basic model with no options or colors.

Condition Trade-In Private Party Dealer
New In box $287.21 $375.58 $441.86
Excellent $265.12 $353.49 $397.67
Very Good $243.02 $353.49 $397.67
Good $220.93 $331.40 $375.58
Fair $154.65 $287.21 $353.49
Poor $110.47 $220.93 N/A

Gun Value Conditions explained:

New in box - 100% condition in unopened box. Excellent - 95%+ condition with or without box.

Very Good - 90% - 95% condition (all parts/finish should be original).

Good - 80-90% condition (all parts/finish should be original).

Fair - 30% - 80% condition, parts, and finish may or may not be original. Must function properly and shoot.

Poor - under 30% condition. Firearm has severe wear and tear, does not function, or is damaged.

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