The EAA MC1911S is a full-size 1911 pistol featuring an all-stainless steel construction with 5-inch barrel. Chambered in .45 ACP with 8+1 capacity, it weighs approximately 39 ounces unloaded. Features include fixed three-dot sights, extended beavertail grip safety with memory bump, checkered wood grips, and Series 70-style internal components. The 'S' designation indicates stainless steel slide and frame construction, offering enhanced corrosion resistance compared to blued models. The pistol maintains standard 1911 parts compatibility and incorporates a traditional barrel bushing system with standard Government-model dimensions and layout.