Modular? Interchangable? Anybody ever?

[BigSam]

MGI modular interchangable lower and an upper with a quick change barrel system.
Anyone have any experience with them or info on them that I can look up outside of their site?

I would think that with all this modular stuff, with hard use it could get kind of ricketty.
Anyone?

http://www.mgimilitary.com/store/index.php?main_page=product_info&cPath=1&products_id=31

http://www.mgimilitary.com/store/index.php?main_page=product_info&cPath=1&products_id=16

Thanks. Sam.

[Gunrider]

Shot at a demo full auto 45ACP here in CA -- was going to go to VEgas and try out the whole rage of calibers -- but they may not have any test guns left with all this buying --

http://i125.photobucket.com/albums/p54/Fasanoland/45Squirtgun.jpg

Rainbow of brass with no stumbles -- They had the 7.62X39 conversion kit there -- it looked to be of the HIGHEST quality -- the whole mag well switches out --

http://i125.photobucket.com/albums/p54/Fasanoland/Marineand4AR.jpg

[chadbag]

I have their older version upper (tube with attached rails). I do not have the lower. I am not done with the build but it seems to be solid. Waiting on a barrel from an unnamed individual...