Tall sights. I am QUITE obviously doing it wrong. WTH?

[bluesman2a]

OK, so I've picked up a couple of 9mm hosts that either have or I have put taller sights on existing guns for use with a Liberty Mystic. In both cases, when I was testing them this weekend I was shooting consistently 6-9" low. I was shooting at approximately 10 yards, with just vanilla 115GR Summit Ammo, and no suppressor (at the time). I was getting good groups, showing consistent/repeatable actions, but couldn't effectively move the group when I was aiming at a specific point of impact.

1) first gun is a S&W M&P Pro Core 9L with the taller sights they use for co-witnessing with the red-dot. These are factory installed. I don't have a lot of trigger-time on this gun and thought it was just me. In fact, I may still rule it to be me, but the similarity in shot placement was almost identical.

2) Also have a glock 34 that I recently had a set of Ameriglo GL-329 sights installed. This also has a new Lone Wolf threaded barrel. I've shot this gun effectively for over a decade. When looking at the Ameriglo website they have a calculator for sight off-set, but if the GL-329 sight is for all glock models, are you SUPPOSED to have to get a different front sight?

Anybody have suggestions?

 

[Laxguy59]

The tall sights need to be both a tall front and rear.

My Ameriglo's are super accurate, you're not focusing on the the target instead of the front post are you?

 

[bluesman2a]

The tall sights need to be both a tall front and rear.

My Ameriglo's are super accurate, you're not focusing on the the target instead of the front post are you?

Both sights are SETS. The S&W was factory and the Ameriglo's were bought as a set, so unless they are mis-matched or not tuned together from the factory, I would THINK they are the proper set together.

As far as focus, I'll just go with a Cooper-ism “Blessed are those who, in the face of death, think only about the front sight.”

 

[Laxguy59]

Both sights are SETS. The S&W was factory and the Ameriglo's were bought as a set, so unless they are mis-matched or not tuned together from the factory, I would THINK they are the proper set together.

As far as focus, I'll just go with a Cooper-ism “Blessed are those who, in the face of death, think only about the front sight.”

That's really weird, I didn't think you had only replaced one of the sights, but I was just checking.

 

[bluesman2a]

That's really weird, I didn't think you had only replaced one of the sights, but I was just checking.

Hey, it's ALL worth checking, I've done some dumb stuff in the past, but this just seems like it would be simpler than it has been, and want to make sure I'm not missing something!