ÓNH claims it has made home made 3D printed versions the the Glock pistol. Four men could be seen holding them during a recent wake for north Belfast republican Matt McCarthy. Dissident republican group Óglaigh na hÉireann (ÓNH) claims it has developed a 3D-printed version of the Glock pistol. Homemade versions of the gun were put on display during a wake for former prisoner Matt McCarthy earlier this week. SDLP Policing Board member Colin McGrath said claims that “3D-printed firearms are now reportedly available to these groups is deeply worrying.