If you have not heard about this before, here is another reminder that LCT Airsoft AKs are modular allowing you to interchange parts from other LCT Airsoft AK AEGs... "Please note that this video states 'Modular', not 'Customized.' It means that LCT has many AK modular parts that can be interchanged, so if you buy those parts, you can make your own original style AK."