.45 AP improved sights

 is a weapon mod for .45 Auto pistol in the Fallout: New Vegas add-on Honest Hearts.

Effects
It appears as though there may have been a sort of "upgraded iron-sight" mod available for this weapon but it was cut from the final release, and the weapons default model uses them instead. This is evidenced by the fact that static world models do not have these improved sights, nor does the one carried by Follows-Chalk. This mod likely increased the accuracy of the .45 Auto pistol.