The Kel-Tec PF9 in 9mm with 3.1-inch barrel was the thinnest and lightest 9mm semi-auto pistol available at introduction, weighing 12.7 oz unloaded with a width of only 0.88 inches. It established the single-stack 9mm carry pistol category years before the Glock 43 and Sig P365 made it mainstream. The 7+1 capacity is modest but the weight advantage is significant. Type: Semi-Auto Pistol Action: Blowback Caliber: 9mm Capacity: 7 Year introduced: 2006, USA Weight: 12.7 oz Overall length: 5.85" Status: Active Intended use: Concealed Carry