
The Roller-Delayed Blowback System: Pinnacle of Firearm Innovation
The roller‑delayed blowback system redefined firearm mechanics. Innovated by German engineers during WWII and refined postwar, it uses rollers instead of traditional locking systems to delay bolt movement, ensuring safer, smoother operation. Widely adopted in celebrated firearms like the HK G3, MP5, and even Budischowsky’s Korriphila HSP‑701 pistol, it remains a testament to engineering brilliance and mechanical elegance.