Kel-Tec® P17 .22lr Tan Pistol

At less than 14 ounces fully loaded, and barely longer than a dollar bill, the P17 is concealable for pretty much anyone. The threaded barrel, Picatinny-style accessory rail, ambidextrous safety, ambidextrous magazine release, and three (3) 16rd magazines come standard. That's a ton of value added in such a small package.