on my rra nm a2 upper the front sight is the 4 prong style but i cant get my 4 prong skinny front sight tool to fit the sight its too wide to fit tween the ears of the sight base. even getting it past the ears if i was able to there is no room in the two slots on the sight the prongs to fit in. ive never come across that before. ill just use a bullet tip to adjust the sight. just wondering if anyone else has had a sight tool not fit.