SIG Sauer Mosquito

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SIG Sauer Mosquito
SIG Mosquito
TypeSemi-automatic pistol
Place of origin
  • Germany
  • Switzerland
Production history
ManufacturerSIG Sauer
ProducedFirst Production: 1985 Discontinued: 2013
MassEmpty: 24.6oz (700g)
LengthOverall: 6.9 inches (176mm)

Cartridge.22 Long Rifle
Feed system10-round detachable magazine

The SIG Sauer Mosquito is a blowback-operated, semi-automatic pistol 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.[1]


The standard Mosquito model is chambered in .22 LR and has a double-action/single-action (DA/SA) trigger. Single action trigger pull is 4.4 lbs while Double-action is 12.4 lbs. The polymer frame and small size (compared to the SIG P226) allow the pistol with magazine to weigh little more than 24.6 oz. The overall height is 5.3 inches with a barrel length of 3.9 inches. The Mosquito's frame has an accessory rail, a ten-round capacity magazine, and adjustable sights. The Mosquito used to be made in America, but is now made under license by German Sport Guns GmbH.[2]


  1. ^ Ramage, Ken; Sigler, Derrek (2008). Guns Illustrated 2009. Iola, Wisconsin: F+W Media, Inc. p. 112. ISBN 0-89689-673-0.
  2. ^ Pearsall, Jennifer (27 August 2012). Gun Digest Illustrated Guide to Modern Firearms. Iola, Wisconsin: Gun Digest Books. pp. 83–84. ISBN 1-4402-3253-9.

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