The legendary KWA 2GX mechbox is heavily reinforced and radiused to provide years of reliable use. The introduction of the 2GX mechbox 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 mechbox fits both the current and 1st-gen KM4 Series, and is universal to The KM4 SR, KR, CQR, and KM16 Series AEGs.

Weight .5 lbs
Dimensions 6 × 5 × 1 in
Mechbox Shell Side

Left Side Only, Right Side Only


KM4 AEG Series