It looks like one of the last Egyptian Maadi's that Century International Arms imported, circa 1998 or so. Century stayed in compliance with the five US parts rule (at the time) with their own trigger/hammer/disconnector, gas piston and two magazine parts (follower and baseplate). It looks like that's your Century Arms compliance magazine (marked with a "C") on the right in the last picture. Since Century imported the entire rifle, not "assembled" by the usual Century Arms group of half trained (subjective) monkee's, they're actually pretty good rifles. Made in an Egyptian Arsenal where they've made that rifle (ARM) since the early 1960's.
The only "less than steller" Maadi's are the Century Arms "manufactured" abortions made with Egyptian receivers and left over Chi-Com parts. Those pre-date your rifle by a year or so. Century (and everyone else it seems) got out of the Egyptian AK business when they found out the Romanians work for less and the rifle quality didn't really suffer! Good luck.