[gafirefighter]

Today I swapped my USPF 9mm from Lem to V1. This gun came from the factory with the Lem trigger. I picked up the kit on here from a great member. Everything installed fine and function checks perfectly. I noticed when I reinstalled the slide that it felt like it was binding. The more I look at it, it appears to be rubbing the trigger bar. I can see rub marks at the front near the trigger. The front nipple is in the divet and the rear of the bar is on the detent and working properly. Something is causing it to bind, and the slide does not release or move to the rear freely. This was the smoothest HK I have, and now it feels awful.

Just wondering if anyone has any ideas or suggestions.

Thanks so much,

Adam

 

[gafirefighter]

I will to get some pictures up later. I can not tell any difference between it and the others, but maybe I am missing something. All I know is it came apart fine and I messed it up somewhere.

Adam

 

[gafirefighter]

When I get back home I will snap a picture and look at it. But I think there may be a small gap.

Adam

 

[gafirefighter]

The spring pushes it up. Could the detent not be seated well?

 

[gafirefighter]

Would it make any difference what gun the v1 parts go in? This is an 05 9mm.

Adam

 

[gafirefighter]

I will get some pictures up in a bit. I took it apart again to try and make sure that everything went in correctly. Everything seems to be where it needs to be. It operates fine, it just seems to be dragging on something. From what I can tell and what I was told, the parts are from a 9mm USP. It is a spurred hammer.

Thanks,

Adam

 

[gafirefighter]

I sold him V1 parts to a fullsize USP (and very probable 9mm).

email sent gafirefighter..

I do not doubt you at all. I trust that these parts are the correct ones for sure. If anything it is something I am not doing right. The parts were just as described .

Adam

 

[gafirefighter]

Here are the pictures that I could actually get into focus. I can not tell any difference between this one and the other USP pistols that I own. Maybe you all will see something I can not.

Thanks again. This site and all of you are a great help.

Adam

 

[gafirefighter]

Here are the best I can get for tonight. I could not get a get picture into the frame. Hope this helps.

Thanks again,

Adam

 

[gafirefighter]

When I compared the parts to the USP diagram, the catch that is in my gun matches the part used in the HK45, not the USP 45. Not sure why that is. This is the part that came in this gun. I am very good friends with the original owner, and have been shooting it with him since he bought it in 05. It has not been taken down until today. This catch actually seems to rest on the hammer at 1/2 cocked, where my others do not touch. I noticed this earlier, but do not see where it would cause an issue. The hammer moves as it should from what I can tell.

Adam

 

[gafirefighter]

Thanks again for all the help. The catch was in the correct place, between the spring, and had spring tension on it. Here are a few picture of the parts. There is one picture with the order and orientation of the parts. This catch looks different to me, but it is the one that came in the gun.

Thanks,

Adam

 

[gafirefighter]

The hammer he sent me has the cut on the side for the new catch, is this also correct. The guy I work with has a USPf 9mm also. His does not have the cut and has the small catch. I guess it could be age. The new catch almost seems a bit wider.

Adam

 

[gafirefighter]

hmmm...

Just a thought. I think the sear axle needs to be flush on the right hand side of the frame. It looks like yours is popped out +1/32"....could this be causing the drag?...

Other than that...I got nothin'!

Bingo. We fixed it at the shop I work in today. The hammer axle was out just a bit to far in the frame rail area. This was slightly dragging on the slide causing the binding feeling. A few passes with a file and it is smooth as butter. It was seated all the way, so not sure why this happened. It is fixed though. Thanks for all the great help. I learned a lot through this one.

Adam