Absolutely, the factory 30rd mags. are the only ones that work good. My buddy, who was a police officer had one. He gave me one. I realized what I had and asked him if he like knives, he said yes, He like the ceramic blade folders. I bought him a Boker small ceramic folder, for about $55, quite a few years ago. The after market mags. in 10, 20 or 30rds are crap. They do not feed correctly, as the specs are wrong.