Denix Replica Colt Python Revolver. Replica Colt Python .357 Magnum Revolver in excellent condition with full working action and swing out cylinder. The Colt Python first appeared in 1955 and soon gained a reputation as one of the finest production revolvers in history. It has been described as the Rolls Royce of modern double action wheel guns and has a dedicated and faithful following. They are very accurate with most types of ammunition and the longer barrelled versions can be fitted with different types of optics. VCR Act applies.