Im assuming you live in Canada since murica likes to sanction everyone. The only Chinese weapons I have are older MAK-90s converted to look like actual Type 56s, Type 56 SKS, Norinco 1911s and Hawk 982 shotgun. All excellent, reliable weapons that I trust over my murican made guns. Though I despise bullpups, I still would buy a Type 97 for collection purposes.I'm 99% sure that its m lok. My Type 97 Gen 3 is also mlok, and it is of course built by the same company (Norinco). The use of mlok saves huge amounts of weight compared to a full rail, since you can mount only as much as you actually need. Mlok is an open standard where all the specs are published. Previously, the Type 97 Gen 2 was using a keymod rail, but mlok seems to be more popular these days. There wouldn't be an incentive for PLA to design something other than mlok. It isn't rocket science.
Is the MLOK on your Type 97 compatible with US or Canadian made MLOK accessories or dimensions are off?
I have been to Iraq twice and Afghanistan twice during my 8 years in the Marine Corps (so glad I woke up and got out btw). I don't recall seeing anyone use mag couplers, I'm sure some guys did but I didnt see it. I currently have 2 AR PMAGs that are coupled together that I bought from a coworker and I do like the faster reload. However, the only pouch that would fit something as bulky as that is my dump pouch but I rather not carry loaded mags in there. Personally I like drum mags but only if they are reliable like Magpul D60s or Chinese AK back loading drums. I tried Surefire 60 round mags and they are murican made garbage.LOL, I might have the same mag couplers as the PLA. They are definitely superior in combat though, as you wouldn't go into your molle to pull out another clip, since you can just reverse the first one you emptied. The downside of course is your system is a few pounds heavier since you carrying another loaded mag on your gun. In terms of modernization, the PLA is definitely "trendy", in that the doctrines look pretty much identical to tier -NATO now. Maybe the engineers have been playing too much video games or surfing too many TFB blogs. LOL.