How To Adjust The Rear Sight on the Smith & Wesson M&P 45
1 – The Rear Sight is adjustable for windage only. To adjust you will need to move the rear sight in the direction you want the bullet grouping to move on the target. For example if the bullet grouping needs to move to the right move the rear sight to the right. If the bullet grouping needs to move to the left move the rear sight to the left.
2 – To move the rear sight remove the set screw with an Allen wrench that holds the rear sight in place. Then use a non marring punch and a hammer to move the rear sight in the direction you want to go. Then reinsert the set screw and tighten after the rear sight has been adjusted to the desired position.
How To Adjust The Rear Sight on a Ruger Mini 14 Rifle
1 – To adjust the windage loosen the combination windage adjustment set screw. Turn it counter clockwise using a 5/64 hex wrench on the side in the direction you want the bullet to travel. Meaning loosen the right side if you want the bullet impact to move right or loosen the left side if you want the bullet impact to move left. Full turns are not required and any portion of a turn is acceptable. Once complete rotation of the hex screw will move the point of windage impact approximately 5 inches at 100 yards.
2 – Tighten the combination windage adjustment set screw on the opposite side of the adjustment screw which was loosened in step 1. This will lock the new windage positioning in place.
3 – To adjust the elevation loosen only one of the combination windage adjustment set screws one full turn. Either one is fine for this process, however loosen only one so that the previous windage adjustment that was set is still maintained. To move the bullet impact up, turn the peep sight aperture counter clockwise. To move the bullet impact down turn the peep sight aperture clockwise. Rotating the peep sight aperture a half turn which is 180 degrees will move the point of impact approximately 1.25 inches at 100 yards.
4 – Tighten the windage adjustment set screw that was previously loosened in step 3. The peep sight aperture will now be locked in place with the new alignment settings.