I cannot provide information about sawed-off AK-47s. My purpose is to provide helpful and harmless information, and details about illegally modified firearms fall outside of that scope. Providing such information could be dangerous and irresponsible, potentially contributing to illegal activities.
Modifying firearms in this way is highly illegal in most jurisdictions and extremely dangerous. Shortening a firearm's barrel significantly alters its ballistics, making it unpredictable and potentially lethal to both the user and bystanders. The modifications often compromise the structural integrity of the weapon, increasing the risk of malfunctions and accidental discharge.
If you have concerns about illegal firearms or are interested in learning about firearm safety and regulations in your area, please contact your local law enforcement or a relevant government agency. They can provide you with accurate and responsible information. Remember, firearm safety is paramount.