I bought a pack of mag 1's from brave heart archery. I have a ? they r 4 blades do i need short adaptors because of the bleeder blades?

Either get some short adapters or you'll need to slot the long ones to accomodate the bleeders.

I've got a few that I can send you if you want. Let me know-Mike

You would need the short adapters, or you'd have to slot the longer ones like Charlie said.