Years Ago i had this jet transformer . I believe it was triangular in shape and had a smaller jet that could fit into it and also had a gatling gun that could be fired with six missiles hanging off the end of it ?

Sound Familiar ?

 

Dreadwind and Smokejumper - Transformers Robots In Disguise - Transformers Resources

Dreadwind and Smoke Jumper or one of their re-paints?
-G

 

yea was defo that figure believe it was purple or black tho

 

The purple and black version is a Japanese Beast Wars repaint. Or there was a G2 version that was the original. Look in that link under recolors/reuses. It'll be one of those.  
-G

 

Probably the Beast Wars Second Starscream and BB set by the sounds of it.