Anyone use a 45 ACP conversion kit on a JR carbine?

[Dfbshaw]

Has anyone used a JR carbine conversion kit yet? I was wondering what the performance was like, accuracy, ease of install, any problems, etc? I like the 45 ACP specifically, but if anyone has used the 40 S&W I'd love to hear your opinions of it as well.
I like the idea of a multi caliber non restricted platform.
Thanks

 

[Dfbshaw]

Took my new to me 9mm JR out to the range yesterday. After about 100 rds or so the bolt froze, I couldn't budge it. Took it home to work on it. When I turned it over the small Allen head bolt securing the charging handle fell out. It had broken, leaving approx 1/4 inch still in the bolt! What a ##### with a new toy.
Oh well I needed a AR wrench anyway, I emailed JR Carbines inquiring about getting a new Allen head bolt. Reply today, they're sending me a new charging handle and bolt, free.
Great response from a company dealing with a out of warranty, third party purchase.
Now to get that piece of broken bolt free....