Some light sanding on the trigger is required. Use super glue to adhere the parts. There are no moving parts in this model (Non-removable magazine). Print with tree support (slim), especially for the picatinny rails and overhang on the ejection port.

Printed with PLA but other materials should work fine based on their respective calibrated profiles.

Introduction
The Five-seven is a modern pistol of Belgian origin. It was developed by FN of Belgium in the late 1990s as a companion to the P90 sub-machine gun. The name was derived from the 5.7x28mm round it fires. As such, it is the first successful pistol in a high-velocity small diameter caliber.

Design
The Five-seven is a delayed blowback pistol. The exterior consists of polymer, while the internal mechanism is made out of metal. The hammer is encased by the polymer-covered steel slide. A distinctive feature is that the Five-seven is thinner near the muzzle. An accessory rail is mounted under the forward frame.

Firepower
The Five-seven is a semi-automatic pistol that fires a 5.7x28mm round from a 20-round magazine. The Five-seven is unique in providing true armor-piercing capability in a medium-sized and medium-powered pistol. Ball and hollow point ammunition exist as well. A longer threaded barrel is available for mounting a suppressor. The effective range is a few dozen meters.

Users
The Five-seven is in use with quite a number of law enforcement and special forces units. It is mainly used in the USA and Europe. Except for Saudi Arabia, no nation adopted the Five-seven as a standard issue military sidearm.