I found a like new MECH-TECH SYSTEMS Pistol-to-Carbine Conversion Unit (CCU) with all the accessories for $199. It has the Full length rail, accessory mounts, Ghost ring sights, and Stock insert. I bought my Dad one of the plain Jane ones a while back and it is a good gun. Anyone have any idea, comments. experience, or thoughts on the CCU? I think I will buy it tomorrow. Sure looks sweet with my 1911 mounted.