One of my two go-to rifles is this RPK-74M made by LCT. This one is currently on loan from an extremely generous friend, but I will soon be purchasing it. The gun itself has been through countless rec games, a few scenario games, one 24 hour milsim and one Milsim West. Through all this, it only had one failure, and that was just bearings being bearings. Granted, it was built like a tank internally by one of the best techs in Japan. Currently, the externals I have mounted are a TWI B-20 railed handguard, a plum upper handguard, and a BCM grip i put on backwards to use as a handstop. For spooky night things, I put a DBAL on the B-20. All in all, I can't recommend LCT enough. Their externals are top-notch, and the internals are pretty reliable stock, however I would recommend getting it tuned and probably swapping the trigger contacts as those go somewhat quickly. They also have super unique guns like the VSS/Val family, the PP-19-01 Vityaz, and soon to be the PKP. They aren't as picky as E&Ls as far as after-market parts go, or mags for that matter. I run a variety of different brands of mags in the RPK and they all work the same, it's pretty simplistic. Overall, LCTs are a safe bet for a top-tier AK.