FPR MK 4 [RS Model]

Features

• Recoil shock model

  Pulling the trigger fires the gun and simultaneously activates the weight inside the buffer tube, generating a powerful recoil. The use of smooth POM material as a guide and the smooth operation of the 300g weight increase the recoil.

• Separate type gearbox

  By dividing the gearbox into a "cylinder assembly" and a "gearbox," the upper receiver (upper set) and lower receiver (lower set) are completely separated. This allows for a more realistic takedown, even though it's an electric airsoft gun. A dedicated cover is included to protect the internal mechanism when storing or transporting the upper and lower sets separately. The cylinder is a small-bore type with a smooth-sliding fluorine lubrication plating and a minimal design that eliminates unnecessary volume.

• EG1000BR motor

  The motor is the newly developed "EG1000BR motor," a reverse type with bearings. The three gears (bevel gear, spur gear, and sector gear) that transmit the motor's rotation to the cylinder have been redesigned, using "MIM (metal injection molding)" instead of the conventional sintering method. Combined with the shaft diameter of the spur and sector gears being increased to 4mm, this has resulted in improved durability, smoother rotation, and exceptional quietness.

• M-SYSTEM Type II

  The gearbox is the "M-SYSTEM Type II," a specially designed version of the "M-SYSTEM" from the MP5 series of next-generation electric guns, optimized for the M4. The MCU (microcontroller unit) monitors information from various sensors and voltages to switch firing modes and control motor rotation, as well as detecting damage or abnormalities in various parts and stopping operation, ensuring safety.

• Pursuing a high degree of accuracy in reproducing the exterior

  We measured a deactivated real firearm and realistically reproduced the size of each part, including the upper and lower receivers, the rail handguards with M-LOK bases on both sides, the grip, and the buffer tube. The receiver uses Cerakote, which has a strong coating and excellent scratch resistance. The grip is made of reinforced resin, which reproduces a realistic size by balancing thinness and durability, while the deliberately left unpainted reproduces a texture that looks like the real thing.

• New chamber and magazine mechanism

  Newly developed features include a "Stabilizer Nozzle" that stabilizes the nozzle position to improve accuracy, an "Inner Elevation" that applies upward tension to the inner magazine to prevent feeding errors, and a "One-by-One Loading System" that closes a shutter inside the magazine every time a BB bullet is sent from the magazine to the chamber, preventing BB bullets from being fed into the gun body after firing until the next bullet is loaded. These new mechanisms improve operational performance and safety.

• Reproduce realistic operation

  The toy replicates a series of operations and actions, such as loading the first round by pulling the charging handle, and when the magazine is empty, the dummy bolt holds open, preventing BBs from being fired even if the trigger is pulled. When the trigger is pulled after removing a magazine with remaining rounds, the toy also replicates the behavior of having a round remaining in the chamber (*). *For safety reasons, no BBs will be fired in this case.

• A realistic press-finished magazine

  It holds 81 rounds. It comes with a dedicated magazine with a steel-pressed outer casing. The "Inner Elevation System" applies upward tension to the inner casing to prevent misfeeds. It also features a "One-by-One Loading System" that closes the shutter after each BB is fired, preventing the next round from being loaded until after firing.