4.5" barrel?

I agree. The hitchhiker is a easy build. It does require you buy the parts kit(around $100). Theres another fully DIY option of the hitchhiker called the TaxiDriver. Its an improved version on the hitchhiker. I bought the parts kit and then found the Taxidriver and printed it and used the hitchhiker parts to build it out. I haven’t got a chance to shoot it yet but it went together easy and looks like its a blast to shoot