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Volquartsen Accurizing Modification for Mark IV

This is a discussion on Volquartsen Accurizing Modification for Mark IV within the Ruger Rimfires forums, part of the Pistol & Revolver Forum category; Originally Posted by Wee Hooker I did kind of a 1/2 way thing. I installed a Volk MK II sear and a disconnect removal bushing ...


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Old April 8th, 2017, 10:38 AM   #46
 
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Quote:
Originally Posted by Wee Hooker View Post
I did kind of a 1/2 way thing. I installed a Volk MK II sear and a disconnect removal bushing (of Ebay). I retained use of the same, trigger, springs and hammer ( I did polish the hammer a bit.) Total cost was less than $40.
Trigger is down to a nice 2# 10 oz now.
I assume your pistol is a MKIII, and not a MKIV? The hammers are different.



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Old April 8th, 2017, 06:10 PM   #47
 
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Originally Posted by Goldenpony View Post
That can't be right. I'd contact Volquartsen, I'm sure they will make it right for you. I have that kit installed in a blue Target model and it works flawlessly.
I sent them an e-mail Friday. I'll give them a call on Monday. From what I've heard about Volquartsen I'm sure they'll take care of it.

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Originally Posted by TestEngineer View Post
The strut should be straight. I can't imagine how it got bent like that. But it won't cause the problem you describe. That sounds like your overtravel screw may be adjusted too far clockwise. Try backing it off about a half turn.
I'm not sure how it got bent either. Nothing in the installation process should do it. I tried adjusting the overtravel screw at different increments from all the way in to all the way out. It didn't seem to fix the problem.

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Originally Posted by Gunner Bill View Post
Morning Bobert

Is your hammer bushing installed in the correct direction? The end with larger washer guides the trigger bar.
I did check that, I have it installed correctly.
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Old April 10th, 2017, 10:19 AM   #48
 
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Gave Volquartsen a call today. They are going to send me a new hammer plus a disconnector. That's the kind of customer service that is great for them and really bad for my wallet haha.
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Old April 10th, 2017, 04:00 PM   #49
 
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Hope this fixes your problem
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Old April 12th, 2017, 10:15 AM   #50
 
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I'm a happy camper. I have installed the Volquartsen Accurizing kit into my Target model MKIV. I knew the trigger pull was much lighter than it was before. I just bought a Wheeler trigger pull gauge. I checked my MKIV and wow, it was exactly 2.5 lbs, just as advertised.
Couldn't be happier.
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Old April 14th, 2017, 06:57 PM   #51
 
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I have been reading all these post looking for an answer to my problem. The problem is not with my standard frame MK IV Hunter. I installed the Volquartsen Trigger Kit to Hunter and it is sweet. Great light and crisp trigger. Pull is in the mid 2# area.

The problem in with my MK IV 22/45. The VQ improved the trigger pull but it is not even close to the Hunter model. Pull is almost 4#.

Not sure how to proceed. I guess I will take it apart and reinstall. I don't know that it could be put together wrong.

Any thoughts?
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Old April 14th, 2017, 09:00 PM   #52
 
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You might try disassembling and polishing the parts. Might help.
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Old April 14th, 2017, 09:25 PM   #53
 
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Most of the pull weight comes from the sear/hammer interface. The finish Ruger gives various pieces varies greatly from gun-to-gun. Compare the hammer notches between your hunter and 22/45. I bet your hunter has a much smoother notch. Like Goldenpony suggested, polishing a bit on the 22/45 hammer notch will most likely bring your pull down to the 2# range.
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Old April 15th, 2017, 12:18 PM   #54
 
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Quote:
Originally Posted by Goldenpony View Post
You might try disassembling and polishing the parts. Might help.
I'll take her apart and give that a try.
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Old April 15th, 2017, 12:20 PM   #55
 
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Quote:
Originally Posted by TestEngineer View Post
Most of the pull weight comes from the sear/hammer interface. The finish Ruger gives various pieces varies greatly from gun-to-gun. Compare the hammer notches between your hunter and 22/45. I bet your hunter has a much smoother notch. Like Goldenpony suggested, polishing a bit on the 22/45 hammer notch will most likely bring your pull down to the 2# range.
I know this is a stupid question but where are the trigger notches. I also have the Tandemkross Victory trigger in the gun.
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Old April 15th, 2017, 07:10 PM   #56
 
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Originally Posted by arlanarneberg View Post
I know this is a stupid question but where are the trigger notches. I also have the Tandemkross Victory trigger in the gun.
The trigger doesn't have a notch. It just pulls the disconnector forward.

The hammer notch is at the bottom of the hammer. It's what the sear falls into when you cock the gun.

Did you install the entire VQ kit into the 22/45, or just a new sear?
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Old April 15th, 2017, 07:17 PM   #57
 
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Originally Posted by TestEngineer View Post
Did you install the entire VQ kit into the 22/45, or just a new sear?
I installed the entire kit.
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Old April 16th, 2017, 09:41 AM   #58
 
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It's hard for me to imagine that VQ wouldn't have done a pretty good job finishing their hammer's notch. But anything is possible.

More likely, it's something to do with your TK trigger. You could easily verify/disprove this by installing the VQ trigger and checking the resulting pull.

It may be something as simple as your finger placement on the trigger. Pull will be heaviest near the frame, and gets lighter as you move down toward the guard.

I have seen reports that some triggers are a bit narrow for the MKIV frame. If the TK trigger falls into this category, that could also be the problem. The fix for narrow triggers is adding shims to the left side of the trigger.

Do a little more investigating and let us know what you find out. It's hard to know exactly what the problem is without having the gun in hand.
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Old April 16th, 2017, 08:03 PM   #59
 
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Quote:
Originally Posted by arlanarneberg View Post
The problem in with my MK IV 22/45. The VQ improved the trigger pull but it is not even close to the Hunter model. Pull is almost 4#.

Not sure how to proceed. I guess I will take it apart and reinstall. I don't know that it could be put together wrong.

Any thoughts?
I have many MK1 and MKIII pistols and the Volquartsen trigger parts usually yield 1 1/2 to 2 lb triggers but when I installed their kit on a new MKIV 22/45 the pull is coming up 3 1/2 lbs. I talked to Volquartsen and they are going to have me try one of their disconnectors to see what it does for the trigger. I will be reporting back to them and I'll update this thread with what I learn.

We also talked about the sear spring being too heavy after removing all the extra magazine disconnect parts and how they are planning to make a sear spring but none is available yet.

The work on the hammer hook and the sear looked excellent so the problem is not there. I may make my own sear spring if the disconnector doesn't produce the desired trigger pull.
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Old April 17th, 2017, 04:52 PM   #60
 
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Quote:
Originally Posted by GreggK View Post
I have many MK1 and MKIII pistols and the Volquartsen trigger parts usually yield 1 1/2 to 2 lb triggers but when I installed their kit on a new MKIV 22/45 the pull is coming up 3 1/2 lbs. I talked to Volquartsen and they are going to have me try one of their disconnectors to see what it does for the trigger. I will be reporting back to them and I'll update this thread with what I learn.

We also talked about the sear spring being too heavy after removing all the extra magazine disconnect parts and how they are planning to make a sear spring but none is available yet.

The work on the hammer hook and the sear looked excellent so the problem is not there. I may make my own sear spring if the disconnector doesn't produce the desired trigger pull.
Thanks for the post. I have been hesitating to call them but I guess I will do that tomorrow.
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