The directors of Steel Core Designs Ltd. have over 45 years experience working in the defence industry, designing and manufacturing precision rifles for the civilian, law enforcement and military sectors. We have used our experience to create 3 new and exciting tactical rifle designs; offering unrivaled accuracy, comfort, ease of operation and above all safety. The Thunderbolt rifle offers some unique features as well as using a proven 4-lug bolt locking system, with a unique and innovative firing pin system. (less)