The Tokyo Marui M4 MWS is an absolute workhorse of a gas blowback rifle, but intense skirmishes and high-speed reload drills can easily chew up the stock alloy magazine release. Z-Parts solves this critical weak point with a precision CNC-machined, high-tensile steel upgrade built to withstand the heavy metal-on-metal wear and violent recoil of the gas system. By replacing the softer factory metal, this drop-in kit completely eliminates accidental magazine drops during fast transitions while keeping heavy gas magazines locked at the exact height required for a perfect nozzle-to-gas-route seal. That tight alignment is essential for preventing frustrating FPS drops and keeping gas efficiency totally dialed in. The release button itself features deep, slip-resistant serrations, ensuring you can reliably drop a magazine even if your tactical gloves are soaked or caked in mud. Protected by a tough, corrosion-resistant matte black finish, the package includes the steel magazine catch, the release button, and a high-tension return spring. It drops straight into Tokyo Marui MWS, MTR16, or CQBR lower receivers with zero modifications needed, making it an absolute must-have for Mil-Sim operators who demand rock-solid reliability in harsh field conditions.
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