It may help you get over your persistent fear of needles, or your lack of a trained phlebotomist/sniper’s pinpoint accuracy.
-But watch out, at this little bastard’s peak velocity of 340 meters per second, you just might blow your arm off if you screw up the settings and put it on, “Rhino at 100 Yards”.
Hit up the links for further details:
JUMP BONUS!: YouTube vid explaining the tech.