From my limited experience they feel like they're from the same factory as WE but didn't pass their already quite liberal "quality control". I don't see the point of getting one of these now that AAP-01 exists unless you REALLY want just throwaway Glock look-alike and not actual functional workhorse. Yeah they work, they shoot BBs, they will be just fine in CQB environment. Cheap and cheerful but quality and performance-wise there are just better products out there. I always recommended CZP-09 as first pistol for someone that was thinking about getting their first gas sidearm. Why jump down TM upgrade rabbit hole or WE shit hole when you can have quality product working out of the box for 90 pounds that's compatible with both green gas and CO2? Even if it's a dead end with proprietary mags that don't find anything else it's just amazing pistol for the price. I've since jumped on AAP-01 bandwagon because it's amazing and it can be ANYTHING you want it to be and takes in the cheapest GBB mags on the market (Raven/Viral 50rd mags are like what 30 quid?). Wanna sidearm? Take one out of the box and off you go, doesn't need anything done to it. Wanna run it primary? Go fun mode, attach the stock, rails, maybe a foregrip, slap a long stick - there you go, you've just got yourself MP9 or MP5K PDW except you don't need to trade away your kidney for a bunch of big mags. It hops 0.40 out of the box - if you really want it you can slap scope on it and snipe because it's laser accurate. Oh you like your AAP so much that you want invest more into it? There is a metric fuckton of official upgrade parts. I just don't see downsides.