M4 Stock Adaptor for Marui MP5
thingiverse
This adapter is designed specifically for toy use only. It's a perfect fit for the Marui MP5 model, but keep in mind it won't work with the real M4 stock. You'll need to use a Toystar M4A1 stock or another compatible plastic stock from a toy manufacturer. Some minor modifications might be necessary to get everything working together smoothly.
Download Model from thingiverse
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