I bought a CMMG drop in .22lr coversion years ago though Brownells. Hands down the best add on I have ever bought. That kit has been a great training tool for myself and especially my sons (at the time 7 and 8yrs old) getting them used to safety manipulations and weapons handling with my ARs.
That kit has also been used on countless new shooters at the range.
Earlier this year the back plate separated from the guide rail and basically made the kit unusable. I tack welded it back on two or three times, but my welding skills are not as good as they used to be.
I contacted CMMG via their Email on their site and they literally contacted me about 30min later and offered to help right away. Fri night there was a box on my doorstep with a brand new conversion kit in it with a return shipping label for the old kit!!
I am super impressed with the way you all handled my issue. Some of my coworkers are considering the conversion kit and they were also very impressed with how quickly it was handled.
Thanks CMMG, I took out the new one and rang it out this morning and it works just as good, if not better than my old well worn one.