I usually frequent the range so I'll be updating this thread quite often.
Yesterday 6/24 I went to the range with a friend to sight in his dads hk416 and shoot his ska and my ar. Once we got there it started to rain so I only managed to get 2 videos. Here's one of them. Video was taken with a GoPro camera.
http://i114.photobucket.com/albums/n262/boostedjdmeg/ar1.mp4
Different angle of footage, kinda cool.
Thanks for posting.
The low frequency twang of that recoil spring makes me miss my AR. Then I remember the PINGGGGG of my Garands.
Nice vid!