It’s alleged that the design for the AK-47’s gas system was borrowed directly from the M1 Garand—albeit flipped upside down. Unlike Soviet rifles such as the SKS that used a short piston which knocked ...

Hierarchical TS-1 has attracted enormous attention from both academia and industry due to its remarkable catalytic performance in epoxidation reactions. However, sustainable synthesis of ...

The M14 rifle, designed in the 1950s to be the US military’s single, do-it-all battle rifle, had a notoriously short and ...