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If you disassemble your M4 into upper and lower receiver, and place the lower receiver to the side. Be very careful with the wiring as it could mess up your weapon. Remove the inner barrel and place to the side. Remove the gear box and motor plate. Disassemble the gear box until you find the sector gear. If your sector gear does not have a sector clip then you will need to add one in order to shoot high speeds. You will then need to rewire the gear box using a solder gun to modify. You will need to purchase the mod chip and solder it to the wires. I had to do this process twice because the first time it only shot 3 round bursts instead of full auto.

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10y ago

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