Caliber: 45 ACP. Barrels: 4.25" or 5". Features: Similar to the 1911A1, except checkered frontstrap and mainspring housing, Novak Night Sight combat rear sight and matching dovetailed front sight, tuned, polished extractor, oversize barrel link; lightweight speed trigger and combat action job, match barrel and bushing, extended ambidextrous thumb safety and fitted beavertail grip safety. Textured G10 grips. Finish: Blued or stainless. The classic model is full- or commander-size with Hydro G10 grips and no accessory rail. The CC model has a bobbed frame. The operator model has a full dust cover and adjustable sights.