Yes, It just snaps on and off like a regular AK mag. The only machining to be done is to the trunion. It took me 20 min. with a dremel the first time. All you have to do is remove enough for the mag to fit against the magrail, snap the adapter on, check for feeding and then go shoot.
I tried to have it CNC made out of aluminum. The guy went out of business and kept my plans and drawings when he dissappeared. He didn't know what it was for though. It would be much quicker to cut it from aluminum than to weld it.