A specialized Carbine Conversion Unit (CCU) manufactured by Mech-Tech Systems, designed to convert compatible Glock pistols into a carbine configuration, utilizing the pistol's lower receiver and magazine well. This particular unit is the CCU Model, confirmed by the accompanying Operation & Maintenance Manual (copyright 2014, Made in the USA). The assembly is constructed primarily of black textured polymer and metal, featuring a distinctive skeletal wire stock for stabilization. The barrel section is stainless or brushed metal, terminating in a ported black muzzle device. The internal breach component is stamped "9 MM," indicating compatibility with 9mm Glock models. The unit includes a top-mounted Picatinny/Weaver rail for the attachment of optics or sighting systems, and a charging handle. Included in the lot are the original Operation & Maintenance Manual, one detached black box magazine, and one new-in-package Viking Tactics Adapter (VTAC-MK3-BK). An applied white asset sticker on the receiver body displays the number 13052. Note: This item is classified as a firearm accessory and may be subject to local, state, and federal regulations regarding barrel length and overall weapon configuration when assembled.

Overall very good condition, showing minimal evidence of use. The exterior black finishes are largely intact with light handling marks consistent with being mounted or stored. The internal silver bolt components show slight discoloration and staining, typical of light firing or storage residue. The included magazine and Viking Tactics adapter are present, with the adapter still sealed in its original clear packaging. The manual is crisp and legible. The unit appears complete for the conversion assembly itself, but requires the user-supplied Glock pistol frame (not included) to function.