Sig Sauer Mosquito .22 LR FDE DA/SA Semi-Auto Pistol, German-Made, 3.9 Inch Barrel, 10+1, Adjustable Sights
This Sig Sauer Mosquito stands out with its Flat Dark Earth finish on both slide and frame, German proof marks, and import mark from SIG SAUER INC Exeter, NH. Built to approximately 90% scale of the SIG P226, it offers familiar training ergonomics in a .22 LR platform. It features DA/SA operation with a decocking lever, ambidextrous manual safety, a 3.9 inch steel barrel, and a windage-adjustable rear sight paired with a fixed front post. The factory case label is dated 29-JAN-2015.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Good - Clean, well-maintained, minor wear marks.
Rifling: Good Rifling - Intact, well-defined lands and grooves.
Specific Condition Notes: This firearm is in solid shape. The exterior shows various cosmetic imperfections, including scratches, blemishes, and areas of finish loss. The bore remains clean and shiny.
What’s Included
- SIG SAUER factory hard case with MOS-22-FDE label
- One 10-round steel magazine for SIG SAUER Mosquito
Chambered in .22 LR with a 10+1 capacity, the Mosquito delivers a rimfire training and plinking option with controls and ergonomics that mirror larger SIG pistols. Its DA/SA trigger system and exposed spur hammer provide flexible operation, complemented by a decocking lever and ambidextrous manual safety.
The Mosquito features a 3.9 inch steel barrel and a blowback, semi-automatic action. Sighting is straightforward and practical: a fixed front post with a yellow dot works with a windage-adjustable rear notch; elevation is tuned via front-sight height.
Both the polymer frame and the slide wear a Flat Dark Earth (FDE) finish, paired with black textured grip panels molded with the SIG SAUER logo. An integral accessory rail with four slots on the dust cover supports common compact lights and training aids.
German proof marks and a "DE" barrel-hood mark confirm its origin, with the SIG SAUER INC EXETER – NH import stamp present. The model number MOS-22-FDE matches the factory case label, which is printed with the date 29-JAN-2015.