The 2 cx4's I bought were from Botach. Never a problem. Maybe I got lucky but I don't care. Botach worked great for me...Now regarding the op's listed link: it's the px4 version. If I am aware correctly you can spend about 40.00 and get the adapter to where the 92 mags will work. At that point you're over 6 bills so it may be worth it to hit up GGS.