The legendary KWA 2GX gearbox is heavily reinforced and radiused to provide years of reliable use. The introduction of the 2GX gearbox brought AEGs to a whole new level of performance, and continues to build on KWA’s reputation of outstanding craftsmanship and dependability.
The KWA 2GX gearbox fits both the current and 1st-gen KM4 Series, and is universal to The KM4 SR, KR, CQR, and KM16 Series AEGs.







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