-For Marui M14 Series,G&P EBR MK14 Mod O, MOD I & M14 DMR Conversion Kit Series Included: -7mm Bearing Gearbox -7mm Bearing -150% Spring -Cylinder -Cylinder Head -Nozzle -Spring Guide -Piston -Steel Gears -Tappet -High Flux Electronic switch -Trigger Guard -Safety Set -Selector
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