I called Glock to find out the history of my newly acquired "lightly used" Glock 36. They said that it's under a recall for frame modification. The serial is GRC XXX made 1/06 I only had a few FTE (previously posted a video). Aside from that, it's a great shooter and ultra-reliable with JHP. How do I go about sending my G36 back to Glock for the service? What does the service consist of? And any idea what the timeline is once I send it in? Should I mention about the FTE minor issue? Any info is greatly appreciated!