This entry details the design evolution of the AR-15 safety selector lever, drawing from historical prototypes and military trial data. Ian McCollum, a recognized expert in firearm history, explains how practical field use, not just initial ergonomic assumptions, led to the selector's final configuration. Understanding this history provides insight into the robust engineering behind the AR platform.
The Scotti Model X was a rare Italian semi-automatic rifle prototype developed in the 1930s, aiming to replace bolt-action Carcanos. It featured an unusual open-bolt design and utilized some Carcano M91 parts, like the barrel. While innovative, it suffered from extraction issues and a long lock time, requiring lubricated ammunition for reliable function.
This guide outlines a rigorous field testing protocol for AK-platform accessories, as demonstrated by Rob Ski of AK Operators Union. It emphasizes extreme environmental stress tests, repeated zero retention checks via quick-release mechanisms, and performance evaluation at the range. The protocol also assesses the impact of accessories on rifle balance and handling, providing expert insights for durability and performance assessment.
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