I have a PRI flip up front sight.  It shoots about 4 inches low at 50 yards with the new BUIS.

When adjusting the elevation on the front sight, how much does POA go up/down per quarter turn?  I'm guessing it's something like 1MOA per full turn or something like that, but that is a guess.  This may have been included in some documentation that long since went the way of the dodo....

I'm hoping this isn't a "screw with it, fire a few shots, screw with it some more..." situation.

Any info?

-Tx

Quoted: I have a PRI flip up front sight.  It shoots about 4 inches low at 50 yards with the new BUIS. When adjusting the elevation on the front sight, how much does POA go up/down per quarter turn?  I'm guessing it's something like 1MOA per full turn or something like that, but that is a guess.  This may have been included in some documentation that long since went the way of the dodo.... I'm hoping this isn't a "screw with it, fire a few shots, screw with it some more..." situation. Any info? -Tx

Nope, you'll have to screw with it.  My colt book shows the exact measurements for each click and they are in the centimeters.  If yours is anything similar, you'll have to do some cranking.  But maybe someone will come along and tell you what it is exactly.

IIRC, on a 20" rifle, each click on a square front post is 1.25MOA.

I can't remember what the click measurments are for the shorter barrels.

WIZZO