Not too bad for an 11 year old... with more practice she might even beat my best recorded time of 35 seconds, which I did with a stock USMC M16A2 (before the Marines got all the fancy A3's with optics and such) which included stripping the handguards and both the semi and burst function check.
I used to be able to field strip and reassemble a tripod mounted M2 .50cal machine in a little less that a minute, including setting the headspace and function check (the M16A2 and M2 field strip were my events for our battallions field games, and I went undefeated both years.) I almost miss those days...
That girl will make a good wife someday.........
She'll might make a decent Marine one day, too...
Mike