Five-seven is a Belgian made semi-automatic pistol chambered the special 5.7x28mm cartridge, was developed in conjunction with the P90 SMG, which also used the same ammunition and introduced in 1990. Five-seven was using Polymer material Slide shell and lower frame, but the slide interior, barrel, trigger, springs, pins, and similar parts are all steel made. However, it weighted only 744g with a full-loaded 20 round magazine, which is a unusually light-weighted.
Five-seven was first targeted to law enforcement and military, the civilian model IOM (Indivdual Officer Model) was launched in 2004, but later replaced by USG (United States Government) after The USG model was appoved by the ATF as a sporting firearm in 2005. Those models are replaced by MK2 in 2013 which already shown in 2013 Shot Show.
6mm Version of Marushin Five-seven GBB Series.
Install with Marushin LD-2system.
Limited blue marking version with Heavy Weight Plastic frame set.
Heavy Weight Plastic Slide with fixed large front sight and adjustable rear sight.
Heavy Weight Plastic lower frame with Marushin Marking.
Comes with ambi type trigger safety lock which located above the trigger.
Adjustable hop up system.
Realistic Field Stripping as real steel.
Full length slide blow back function.
Included a pack of spare parts (slide lock, trigger safety, mag catch and slide catch) in black.
8KG (134a) gas is recommended.
Included 18 rounds Gas Magazine.
Barrel Length: 105mm
Shooting Mode: Safe, Semi-Auto
Gas: 8KG (134a), 12KG (Green Gas)
Weight (g): 900 (Gun with magazine), 1600 (with box)
Magazine Capacity: 18 + 1 rounds
Material: Heavy Weight Plastic, Metal (Inner parts, Magazine)
Bullet type: 6mm BB
Power (Muzzle Velocity) : 310 – 330 FPS (Green gas)
Manufacturer: Marushin (Made in Japan)