...isn't in a military looking configuration and are converted once here to achieve the correct parts count. Sellers simply don't go into the gory details of what has to be done to the guns to sell them with a pistol grip.
Actually, what we are talking about is that some people have reported "sporter" configuration 5.45 saigas accepting and functioning with standard 5.45x39 AK magazines. That is the work with standard mags without the mag catch being filed or a bullet guide being installed. I have read reports of them being that way and reports of them requiring either or both of those mods.