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– SHIPS FROM MAY 30TH 2026 –
 
EVOLT FPR MK4 Recoil Shock Electric Rifle Starter Pack: Everything you need to run the EVOLT platform.
 
Decades of experience and airsoft innovation have led to this rifle series: stunning perfection in every detail, absolute performance in every shot.
 
This pack contains: 1x Evolt EVOLT FPR MK4 Recoil Shock Electric Rifle, 1 x 81 rounds Evolt Magazine, 1x Evolt Li-Po Battery, 1x Li-Po Safety Charger, 1x Power Outlet.
 
Read more about EVOLT here in this deep dive article.
 
■Recoil shock model
■Equipped with M-SYSTEM Type II
■Equipped with auto-stop system
■Equipped with variable hop-up system
■Full auto (continuous fire) / semi-auto (single shot) selectable
■Proprietary MS Li-Po battery [stick type] - not compatible with other brands of batteries
 
Length: 724 mm / 806 mm (with stock fully extended)
Barrel length: 229 mm
Weight: 3,100 g
Caliber: 6mm BB (0.2-0.28g)
Rate of fire: approx. 17 rnd/second
Muzzle velocity: approx. 93 m/s (305 fps)
Magazine capacity: 81 rounds proprietary magazine
Power source: Proprietary MS Li-Po battery (stick type)
Model name: Federal Patrol Rifle Mark 4
 
A patrol rifle platform refined for law enforcement applications.
 
The EVOLT FPR MK4 Recoil Shock Electric Rifle joins the Evolt RS electric gun lineup as the first model to combine true-to-life dimensions with realistic operation and recoil feedback. Designed around a patrol rifle concept, it delivers an immersive shooting experience with enhanced realism in both handling and performance.
 
The exterior dimensions were measured directly from a real firearm to ensure exceptional authenticity, while internally it features a split-type gearbox and the advanced “M-SYSTEM Type II” developed specifically for the M4 platform. Newly designed chamber and magazine systems further elevate reliability, operational realism, and shooting performance, pushing the Evolt/Evolt RS series to a new standard.
 
Main Features
 
Recoil Shock System
Each trigger pull activates both firing and a moving internal weight housed inside the buffer tube, producing a Marui's strongest recoil ever. A smooth POM guide combined with a 300g moving weight enhances blowback feel and cycling smoothness.
 
Split-Type Gearbox
The gearbox is separated into a “cylinder assembly” and “gearbox unit,” allowing the upper and lower receivers to split apart just like the real rifle. This creates a highly realistic takedown process despite being an electric airsoft gun. Protective covers for the internal mechanisms are included for safe storage or transport when separated. The compact cylinder uses fluorine-coated plating for low-friction operation and reduced unnecessary internal volume.
 
EG1000BR Motor
Equipped with the newly developed reverse-type “EG1000BR” bearing motor. The bevel, spur, and sector gears have been redesigned using MIM (Metal Injection Molding) construction instead of traditional sintered components, improving strength, smoothness, and operational quietness. Combined with reinforced 4mm gear shafts and high-precision MinebeaMitsumi bearings, durability and efficiency are significantly enhanced.
 
M-SYSTEM Type II
The gearbox incorporates the dedicated “M-SYSTEM Type II,” an optimized evolution of the system originally developed for the next-generation MP5 electric gun series and adapted specifically for the M4 platform. An onboard MCU (microcontroller unit) monitors sensor data and voltage levels to manage firing modes, motor control, and system protection, while also detecting abnormalities to improve operational safety.
 
Highly Accurate Exterior Reproduction
A deactivated real firearm was carefully measured to faithfully reproduce the dimensions of the upper and lower receivers, rail handguard, grip, and buffer tube. The receiver is finished with durable Cerakote coating for superior scratch resistance. The reinforced resin grip balances slim dimensions with structural strength, while its intentionally unpainted finish recreates the appearance and texture of real firearm furniture.
 
Newly Designed Chamber & Magazine System
Newly developed mechanisms include a “stabilizer nozzle” for improved nozzle alignment and greater shooting accuracy, as well as an “inner elevation” system that applies upward pressure to the magazine internals to reduce feeding issues. The innovative “one-by-one loading system” closes an internal shutter after each BB is chambered, preventing additional BBs from entering the gun until the next cycle. These features improve both reliability and operational safety.
 
Realistic Operational Controls
The rifle replicates authentic handling procedures, including chambering the first round using the charging handle. Once the magazine is empty, the dummy bolt locks open and firing is disabled until reloaded. The system also simulates a remaining chambered round after removing a partially loaded magazine.*
 
Realistic Pressed-Steel Style Magazine
Includes a dedicated 81-round magazine featuring a steel-pressed style outer shell. Designed exclusively for Evolt/Evolt RS M4 models, the magazine incorporates both the “Inner Elevation System” and “One-by-One Loading System.”
Magazines from other series are not compatible.
 
What's included:
Evolt FPR MK4 rifle, 1x magazine (81 rounds), 1x Li-Po Battery, 1x Li-Po Safety Charger, power outlet, magazine adapter, adjustment tool, receiver cover (upper/lower/pin x2), protective cap, grub screws x2, hex wrench x2, instruction manual, loading tube, loading rod, cleaning rod, BBs (0.2g/100 rounds).