Need Help with Sony Vegas Slow Mo

[Zerk Perk]

Im trying to edit a MW2 trick shot and i want it to slow down in one part of the trick shot but be normal speed the rest of the shot, but i can't only add slow motion to one part of the clip it makes me slow down the whole clip if i want it in slow motion.
http://www.youtube.com/watch?v=PYj8Ee8URLA
that is the clip im trying to edit and i want to slow when he pulls out the magazine then fast for the shots, then slow again for when he pulls out the magazine.
Can someone please teach me

 

[Kinaesthic]

Hold shift when makeing the clips lengthier will make them go slower.
(Dragging the clips to the right while holding shift)

 

[blahnoobz]

To do this split the clip from the rest of the clip where you want it slowed then slow that part down.