FGC-9 MKII Stingray: thread in AR buffer tube adapter TAKE2

FGC-9 MKII STINGRAY note: the shrouds, upper and lower and stocks are different from the FGC-9 MKII and MKIIsd. so make sure you use the right model. some parts will be modded so they can be used on both. but you have to make sure that the parts you want to use are actually available for that model

for FGC6 users this is model ready to use with out any risk.

for FGC9 users this is still a Beta in the sense this needs more test fire data!

this model have been tested. 
https://www.printables.com/model/87926-fgc-9-mki-or-mkii-unw-metal-buffer-tube
but this older model can be a bit of a tricky one to have a good parts fit with. so that is why I want to give this model a try. and see how that works out for people. since this would be less tolerance sensitive

here do I talk about about the installation and comparison of the two models
https://youtu.be/Z7GM8_eQt9U
https://odysee.com/@UntangleWORKS:a/UNW-metalbuffertube-take-2:f

(the take3 model can't be used on a stingray model!)
a newer model would be the TAKE3 this is also a thread in model but will use the castle nut a the front not in the back. so it's a bit of a mix between the first version and the second version. this was after some feed back from Plastic Arms Channel. I have included his model as well but I did wanted to remodel the file a bit so make is stronger after making such a big cut out in the mount. but the idea here is that the buffer tube is hold on by the castle nut. and the force is spread over a bigger ring. just like the first version.

for the FGC-6 can you use a fully 3d printable version as well
https://www.printables.com/model/625262-fgc-9-mkii-stingray-ar-buffer-tube-thread-in-model
https://cults3d.com/en/3d-model/various/fgc-9-mkii-stingray-ar-buffer-tube-thread-in-model-replica-for-the-fgc6

fallow official print settings