.22 LR. 5.875" barrel length. SN: 01472. Conversion kit for the Uzi Carbine permitting 9mm caliber arms to fire .22 ammunition featuring a Parkerized finish to all metal parts. Included in the kit are the .22 caliber barrel insert, owner's manual, magazine loading tool, and the bolt assembly. Bolt is marked .22LR/IMI ISRAEL with further marks including 03 to the breech of the barrel along with a .22 caliber marking. All items fit in a foam lined black synthetic hard case.