So i just got my fisrt purple Assult rifle that got two Glyphs spots and was wondring witch glyphs i shuld have

I'm not the one to give such advice, but don't you mean 1glyph and 1signet slot?

The glyph depends on your build and role, so it would be helpful to know how your build looks too

LeM:)rt

yes 1 glyph and 1 signet. and im doing rifle and pistole Dps range, mostly Solo

Usually one of Crit or Crit power on the weapon glyph is the standard. It depends on whether you're using the weapon as your forced crit weapon or not.

Same sort of deal with signets. Abuse is good as is Fury for weapons, though again it depends on whether you're using the weapon to force crit.

generally speaking for Assault Rifle: Crit rating glyph.
Abuse signet on your building weapon.