How it was Done

Carbon Fiber Nylon and Glass Filled Nylon FGC-9 with Riptide Rails parts! This fun, strong FGC-9 is a binary firing fun piece of 3D printed machinery.

Check out the sponsor – Vedder Holsters!
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PLEASE NOTE 3D Arms comment: “The danger of this style of binary is that it can fire before the bolt is closed and cause an out of battery or dead trigger.”

HK Slap by PSR: https://www.youtube.com/watch?v=kucefQ6sYbo