period, all remaining stock leftover including parts was sold to CDNN Investments in Abilene, Texas and liquidated at discount rates. The following are the primary variants of the Mateba revolver: Defense - 4" Barrel, .357 Magnum Home Protection - 5" Barrel, .44 Remington Magnum Dynamic Sportiva - Either 5" or 6" barrel, .357 Magnum, .41 Magnum, .44 Magnum Hunter - 8 3/8" threaded Barrel, .357 Magnum, .44 Remington Magnum (.44 S&W Special), .454 Casull In addition, their barrels can be changed with interchangeable 3", 4", 5", 6", 7" and 8" inch barrels. There was apparently chambering in 30-357 AeT offered according to manuals released in 2000-2001, it is unknown if any were actually produced in this caliber. Mateba Grifone Also available was the Mateba Grifone, a revolver carbine which came in three primary variants: Grifone - The standard Grifone mated an barrel, handguard and buttstock to the Autorevolver's frame and action, and included a barrel shroud with 4 widely spaced slots at the top. Grifone MoSer - Chambered in .454 Casull and mated to a longer barrel, Including a longer shroud with 5 widely spaced slots at the top. Grifone Short - Included a shorter barrel and shroud with 4 narrowly spaced slots. It was available in the following Calibers: .357 Magnum - Grifone, Grifone Short .41 Magnum - Grifone .44 Magnum - Grifone, Grifone Short .454 Casull - Grifone MoSer The buttstock came in 2 styles, a solid traditionally shaped walnut stock, or a "skeletonized" style all metal stock with a walnut cheekrest. Multiple cartridge capability Mateba Autorevolvers chambered in .357 Magnum can be loaded with .38 Special ammunition. Typical .38 Special loads do not have enough power to fully cycle the recoil mechanism, but the weapon will still function with a double-action trigger pull. There are two optional recoil springs designed specifically for .38 Special cartridges that can be installed by the operator to overcome this problem (.38 Special and .38 wadcutter). Replacing the spring requires the removal of the slide assembly, which is blocked by a retaining pin held in place by a small set screw in the triggerguard. The barrel shroud acts as the spring keeper and guide rod bushing. Autorevolvers chambered in 44 Magnum can have the recoil spring swapped out to shoot 44 special and 454 Casull can fire 45 Long Colt with a spring swap. See also Chiappa Rhino, also designed by Emilio