looking back I realized this is not a T20 but rather a smaller version called the Tommy 12.

This one was only 12.99 so you don't have to feel so bad for paying for such crap.
As the name indicates it has 8 less shots. and is much smaller almost pistol size. firing mech and all that are the same as the old version.
Oh and just for comparisons sake here is a pic of both the old t20 and the Auto T20.

If I run out of good blasters to mod I might pick one of these up. (doubt it)