Nerf 4 Rail Barrel
thingiverse
Update: I've added a Light Version. This new version is compatible with Nerf Modulus front barrel attachments that use the 4-Rail-Barrel design. Please be cautious when handling this updated version as it has tight tolerances, which may require scaling up to fit perfectly on your Nerf guns. I've personally tested it and found that it fits exactly without leaving any space.
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