Full kit included: -enhanced gearbox Ver.III -switch assembly -steel gear set -special bore cylinder kit -polycarbonate piston -anti-heat selector plate -6mm steel bushing -steel anti reversal latch -steel enhanced cut-off lever -ball bearings spring guide -enhanced tappet -shim set -gearbox inside spring set -steel trigger set -safety and selector set -teflon grease spring is not included (max sp130)