Sig-Sauer Mosquito, .22 long rifle cal. auto pistol. Serial #f317237. Excellent condition. 4" barrel has an excellent bore. Black finish has two or three marks for wear. Three dot green fixed sights. Light/laser rail under barrel. Textured grip areas. Single/double action with slide safety. One 10-rd. magazine. Nice plinker in the spirit of the mighty P226! Gunrunner West item.