This hopup is suitable for the Gen 10 ACR or it also can fit the Gen 9 M4A1. The hopup threads onto the end of the outer barrel.
Hopup's work by creating a backspin on the gel ball and once adjusted correctly will give the user more accuracy and range.
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Gel blasters are toys only and are NOT weapons or firearms.
Always use the appropriate eye wear and take all reasonable safety precautions when using our products.