GB-22 plan discussion
Mark Serbu, a gun designer, discusses the plans for building the GB22 firearm. He clarifies details regarding assembly drawings, material choices (including 4142 pre-hard plate and heat-treated 4130), barrel construction with match chambers, and slide assembly options. The video emphasizes the flexibility in the design, allowing for various machining approaches and material substitutions, while also highlighting critical safety considerations and ITAR regulations.











