Usually the Mk I came with wood grips, but with the later made Mark Is some might have been shipped with Pachmyers. Value depends on condition of the gun and the mags. The rug also adds value, since it might sell for $25 to $50 by itself. If the mags say Detonics .45 ACP and are stainless, they are the preferred mag., and the extra mag probably adds $40 to $55, maybe more. The gun, rug and mags in good shape could go for $450 to $675, depending on the locale. Some people speculate the older guns will go up in value when the new guns are actually out, because parts will be more available, the new guns will expand interest in the Detonics line, and the older guns will gather additional collector interest. A similar Mark I with serial C21### that had a rug and one mag went for $595 at Auction in Spring 2003.