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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; Yes, I put my Volquartsen kit in. It takes a little patience, but is worth the effort. Sent from my iPad using Tapatalk...


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Old February 15th, 2017, 03:14 PM   #16
 
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Yes, I put my Volquartsen kit in. It takes a little patience, but is worth the effort.


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Old February 23rd, 2017, 07:12 AM   #17
 
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Volquartsen Accurizing Kit for Mark IV

Quote:
Originally Posted by pfiedler View Post
No they did not send back my original disconnector nor did they send back the Volquartsen trigger that came with the Accurizing kit! My bad...I was just happy to get the M4 back and didn't think longer term like you have.
Although probably fruitless at this point, I might reach out to VF to see if they might still have my parts aside somewhere. Something tells me that's a real dream!
Seems to be some sort of misfit between the VF accurizer trigger disconnector and the TK trigger when used together.
I have a friend who also has a Mark IV and has been having trouble with the Volquartsen accurizing kit as well. He doesn't have a Tandemkross trigger though. Just wondering where the problem lies. I've been tinkering with my Mark IV for weeks, trying to get the accurizing kit to work to no avail. I tried using my friend's disconnector, but his didn't work with my Volquartsen accurizing kit either. I'm hoping to avoid sending my Mark IV in to Volquartsen and getting charged to put in a kit that I was intending on putting in myself. I've tried both the Volquartsen and Tandemkross trigger and am at wits end!
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Old February 23rd, 2017, 11:39 AM   #18
 
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Quote:
Originally Posted by AlphaHunter View Post
I have a friend who also has a Mark IV and has been having trouble with the Volquartsen accurizing kit as well. He doesn't have a Tandemkross trigger though. Just wondering where the problem lies. I've been tinkering with my Mark IV for weeks, trying to get the accurizing kit to work to no avail. I tried using my friend's disconnector, but his didn't work with my Volquartsen accurizing kit either. I'm hoping to avoid sending my Mark IV in to Volquartsen and getting charged to put in a kit that I was intending on putting in myself. I've tried both the Volquartsen and Tandemkross trigger and am at wits end!
Hey Alpha,

I have to assume this is your first experience with adjustable triggers. So let's start with describing what the adjustment screws do.

The top screw is the pretravel screw. Turning it clockwise reduces how far forward the trigger moves when you release it. This means you have less takeup before the disconnector starts pushing the sear forward. If adjusted too far, the trigger won't reset between shots.

The bottom screw is the overtravel screw. Turning it clockwise reduces how far back the trigger moves when you pull it. Once the sear has released the hammer, there's really no need for the trigger to keep moving back. If adjusted too far, the sear won't release the hammer.

So first, make sure you have the safety in the "fire" position and you don't have the overtravel screw adjusted too far clockwise. This should get the VQ target trigger functioning.

As for the TK trigger, since it's sold separately from "the kit", it's possible you have the MKIII version instead of the MKIV. Just like the VQ trigger, the MKIII version has too much material to function correctly in the MKIV frame. The good news is that the extra material can be filed off to make it work.

The extra material on the VQ MKIII trigger is on the back/sides, behind the plunger. The extra material on the TK MKIII trigger is at the top/back of the shoe where the trigger enters the frame.

Also, it might help to visually see what the sear is doing as you pull the trigger. This is easier to do by installing the VQ parts without the hammer. You can pull and release the trigger with the disconnector pushed down and released. See how the sear doesn't move when the disconnector is down, and it does when released? It really helps to understand what each part does.

Try looking at these things first. Maybe you can post some pics of the problem if you still can't figure it out.

Good luck.
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Old February 24th, 2017, 11:37 AM   #19
 
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Quote:
Originally Posted by AlphaHunter View Post
I have a friend who also has a Mark IV and has been having trouble with the Volquartsen accurizing kit as well. He doesn't have a Tandemkross trigger though. Just wondering where the problem lies. I've been tinkering with my Mark IV for weeks, trying to get the accurizing kit to work to no avail. I tried using my friend's disconnector, but his didn't work with my Volquartsen accurizing kit either. I'm hoping to avoid sending my Mark IV in to Volquartsen and getting charged to put in a kit that I was intending on putting in myself. I've tried both the Volquartsen and Tandemkross trigger and am at wits end!
VQ charges $65.00 to "repair" your FCU unless the problem is with their parts. In other words, you'll pay $65.00! They charged me an additional $35.00 to make a new disconnector that works with the TK "Victory" flat-face trigger. There was no charge to ship the frame back to me and it cost me $7.95 (I think) to ship it via USPS Priority Mail. Turn-around time was about two weeks, but that was also right about the time of the Shot Show in Vegas so that might have slowed things down a bit.

The bad news is you don't get to pat yourself on the back for figuring the install out (which may have nothing to do with your gunsmithing skills) and the good news is your gun will come back expertly installed, lubed and ready to go...once you reattach the barrel portion of course.

I did have to adjust my TK trigger (as TestEngineer reports) to get the trigger just right for my use. NOTE!!! You need to put a drop of Loctite Blue on the thread of the two adjustment screws or else they will start to back out after 10-15 rounds and your screw settings will be lost very quickly. How do I know that? Well...you guessed! I thought the gun had crapped on me at the range until I remembered that I had not put the Loctite on the screws. Problem solved.

The Mark IV shoots beautifully with a very light and crisp trigger response. I just ordered a digital trigger scale (due in on 2/27) but I'm guessing it's around 2-2.5lbs right now. I'll post the actual after the scale comes in.

Hope that helps. By the way...VQ has incredible customer service.

Peter
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Old March 9th, 2017, 09:51 AM   #20
 
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This is a great thread! I just bought a MK IV Hunter and want to do the Volquarten kit. If I get 'stuck', I have an out. That's cool!
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Old March 9th, 2017, 11:45 AM   #21
 
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Watch this video about five times. Note what is done when. Keep this video running while you do the install. It took me about 30 to 45 minutes to complete. Some of that time was spent looking for the spring and plunger for the safety lever (it fell into the frame and not on the table or floor).

The install is pretty much straight forward and easy to do AFTER you have studied this video.

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Old March 9th, 2017, 06:01 PM   #22
 
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OK... kit ordered! I want more accessories like a great set of grips.
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Old March 10th, 2017, 01:07 AM   #23
 
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I read somewhere Volquartsen is going to make their own sear spring, is this true? I am about to install their accurizing kit in my Target model and wonder if I should get this latest spring.
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Old March 12th, 2017, 11:19 PM   #24
 
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Just installed my kit. I notice I seemed to have an extra spring sitting on the desk and I don't know why.....

Function test and seemed fine, but felt off. The slide lever seemed sloppy than I remembered. The safety felt mushy switching up and done.

Also noticed it wouldn't "sling shot". Didn't seem anywhere about losing this function. Bummer.

Thinking maybe this extra spring belongs somewhere....

Decided to watch the installation video posted in here. He mentioned a safety spring and plunger. Ahhh. Pushed the safety slightly out and see the hole. Well, where is the plunger. Spent about 10 mins looking around the table and carpet on floor. Finally found it but I see its a plunger and the spring is still attached to it. Hmmm. I put the safety plunger and spring in place and continued watching the video.

He mentioned there's a spring tucked in the frame that the slide lock sits on. Looked if I see this spring but nada. So that's where this extra spring is for. Perfect fit. Slide lock end sits right on it giving it some tension.

Finish reassembling again. Function test went much better. Sling shot works again. Magazine rockets out of the frame now, lol.

Trigger is very light. I have the pre travel set. But the over travel screw sucks. Too much sticks out. I'm afraid it'll rub my finger raw. May just remove the screw completely and fill it?


Also, I bought the Volquartsen Extended Slide release. It does not fit the IV Lite. Bummer. Didn't see any warnings about this. What a waste of $20
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Old March 13th, 2017, 06:23 AM   #25
 
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There's a couple of interesting points brought up in this thread...

Quote:
I read somewhere Volquartsen is going to make their own sear spring, is this true?
I installed a VQ sear in my MKIII about 2.5 years ago. Their website showed a spring with the sear, but did not mention it in their description. So I emailed Scott and asked if the sear came with their spring. He said it did, so I placed my order. My spare parts bin still has the Ruger sear spring that was replaced.

Quote:
the over travel screw sucks. Too much sticks out.
I also installed the VQ trigger. It came with 2 over travel screws. A longer and a shorter one. The MKIII Standard model needed the longer one. Other models may need the shorter one.

So I'm wondering if Volquartsen has changed what they include with the sear and/or trigger they sell. No spring with the sear? No short over travel screw with their trigger? Does anyone know, who has purchased more recently? Thx.
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Old March 19th, 2017, 12:00 AM   #26
 
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Quote:
Originally Posted by TestEngineer View Post
Hey Alpha,


As for the TK trigger, since it's sold separately from "the kit", it's possible you have the MKIII version instead of the MKIV. Just like the VQ trigger, the MKIII version has too much material to function correctly in the MKIV frame. The good news is that the extra material can be filed off to make it work.

The extra material on the VQ MKIII trigger is on the back/sides, behind the plunger. The extra material on the TK MKIII trigger is at the top/back of the shoe where the trigger enters the frame.
Can you share a picture of the Victory trigger modified for the Mark IV 22/45?
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Old March 21st, 2017, 04:07 AM   #27
 
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Got mine yesterday and installed it. It was easy to install and works well. I'll report more after I shoot it today.
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Old March 21st, 2017, 08:34 AM   #28
 
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Quote:
Originally Posted by AzShooter1 View Post
Can you share a picture of the Victory trigger modified for the Mark IV 22/45?
I'll post a pic when I get the new trigger.
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Old March 21st, 2017, 09:20 AM   #29
 
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Question-What's wrong with the trigger that comes in the VQ accurizing kit? Mine seems great.
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Old March 21st, 2017, 12:19 PM   #30
 
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Nothing is wrong with the Volquartsen trigger, It's just that I like the straight trigger a little better. It also helps drop the felt weight of the trigger a little. You keep your finder centered on the trigger and can tell if you are pushing to the right or the left. Adds in keeping your groups centered.

Take a look at it at Tandemkross.com. It's not for everyone but it's a nice upgrade if you want it.
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