The MZ 4 P 10.5″ is a powerful 5.56mm NATO automatic rifle equipped with a PISTON Operation System. The advanced piston system improves reliability in adverse condition and reduce the blow back gases, making it ideal for use with suppressors. Featuring a 10.5″ barrel, this rifle strikes the perfect balance between accuracy and maneuverability, making it the preferred choice for military and security forces worldwide as their standard-issue main rifle.The PISTON Operation System effectively directs gas away from the rear of the rifle, even when using a suppressor. As a result, the bolt carrier assembly stays clean and cool, ensuring reliability during extended firing sessions.This system also enhances stability and is far easier to disassemble and maintain compared to the traditional direct impingement system.