Made from 1.5mm sheet instead of 1.0mm was a benefit, and the parts never broke, thankfully. The price of .223/5.56 30 round magazines for Chinese AK's were hitting on 250$ each on Gunbroker. I made my own mags that work 100% from inexpensive steel Galil ma35 rd mags. Norinco made and imported semi auto versions of the AK, ex military and police SKS's, as well as various other semi auto and bolt action arms. That came to a screaming halt when a connex van full of full auto AK's arrived and was found by authoritys in california. To double knuckle down, Joe "assault weapons ban" Biden got his legislation through and for 10 years the ban stopped no crime and saved no one. Since nearly all ammo sources cross the Atlantic now, ammo prices were doubled back then simply due to shipping t across the US, here to the West coast......1,200 5.56 back than was 89$ landed at my feet, and nearly the same for X39 and X54r.