Just looked through my notes and decided it was time to clean my training carbine. It is a bcm midlength upper 16" on a colt lower, only change to the lower has been a ALG ACT trigger. Looking through my notes the gun is at 3800 rounds, with the last 2800 being uncleaned. I also annotated when I added lube, which was only twice. Once after shooting with SLG when I experienced my only stoppage (round failing to chamber when it was extremely cold and a determine bad magazine) and once before my last range trip down in OKC. This gun has been extremely accurate, reliable, and shootable. Just thought I would share the performance and outstanding reliability of this carbine. Now I am off to scrub carbine and have flash backs of trying to turn my M4 in at the armory to go on libbo.