Imagine strolling into a modern gun store and declaring your intent to sporterize a 1903 Springfield. The shock would be so palpable, you might as well have called the cops yourself! But take a peek at the 1963 Williams Gun Sight catalog, and you’ll find step-by-step guides on transforming nearly every military surplus rifle into something unrecognizable. The before-and-after shots? They’re enough to make today’s collectors sob into their morning brew.