The following video shows and operational comparison animation between a standard bolt carrier system and DSAS bolt carrier system. You can see the difference in the rate of fire as well as the shock absorbing effect of the DSAS device.
DSAS from Unified Weapon Systems on Vimeo.
The following two videos show live fire operational comparisons between a standard system rifle and our rifle outfitted with the DSAS device. Note the controllability and steady tempo between rounds when the DSAS device is used in automatic fire mode.
The advantages of the DSAS device are impressive and real. Full controllable automatic fire is achieved regardless of barrel length as shown in the following videos: