ECHO1 USA M28 Upgrade Kit

No, this kit is specifically engineered for the Echo1 M28. It is not compatible with other sniper rifle platforms due to specific internal dimensions and proprietary parts.

While it is a straightforward upgrade, you should be comfortable disassembling your rifle's bolt assembly. If you have never opened an airsoft gearbox or bolt system before, we recommend following a detailed tutorial or seeking assistance to avoid damaging the internal components.

You will see a significant increase in muzzle velocity, pushing your rifle into the high-power category. Keep in mind that higher FPS often requires heavier BBs, such as .30g or .40g, to maintain accuracy and prevent the BB from veering off course.

The stock plastic components in many rifles can struggle under the stress of a high-tension spring. Upgrading to aluminum provides the structural integrity needed to handle the increased force, ensuring your rifle cycles reliably without the parts cracking or warping over time.

While this kit handles the spring and piston, the increased tension puts more stress on your entire system. It is wise to inspect your trigger sear and cylinder for wear, as these parts may need to be upgraded to reinforced steel versions to handle the higher power output long-term.