The PF-9 retains the best features from Kel-Tec's P-11 and P-3AT pistols combined into a flat (0.88" wide) and light single stack 9mm configuration. The PF-9 is nearly identical to the P-11 in length and height and shares the same exterior controls. The shorter trigger system with integral hammer block and the extraction system are adapted from the P-3AT. The rear sight is adjustable for windage with the supplied allen wrench as well as for elevation with the use of shims (not included). It includes a 7-round rectangular magazine supplied with a finger extension base plate and numbered holes. It has a single notch under barrel MIL-STD-1913 Picatinny rail.The P-F9 is available with black polymer grips and either a black parkerized or blued slide.