Best adjustable rear sight for a M&P

[moorepower]

I just got back form the range with my M&P CORE 9mm, and it is shooting about 8" low at 7-25 yds. I was shooting 115 grain ammo, and I could possibly try 147 grain and see how it shoots, but my other 9mm's like the 115 grain, and with 4k rounds on hand I would kind of like to shoot the 115 grain. The fiber optic front will be perfect for steel and bowling pins, so I am really just looking for the rear sight. Would the Novak be the best bet. F.Y.I. I shoot all my other pistols to point of aim, and with the trigger in this gun," very nice" I don't think I am the issue.

 

[Shield9mm]

IMO the best one is definitely MGW sight pusher. I have changed the sights on all my guns with it in a breeze.

 

[Dave Nowlin]

I could be wrong but I don't think he is asking for advice on a sight installation tool. He wants to know who makes a good adjustable sight for these pistols.