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RAP Thumb knuckle issue

This is a discussion on RAP Thumb knuckle issue within the Ruger Pistols forums, part of the Pistol & Revolver Forum category; I recently traded for a RAP .45, and just like the MAC review showed, it does beat my thumb up. Has anyone had this issue, ...


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Old January 16th, 2017, 03:52 PM   #1
 
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RAP Thumb knuckle issue

I recently traded for a RAP .45, and just like the MAC review showed, it does beat my thumb up. Has anyone had this issue, and then remedied it by modification of some kind? Changing to the big backstrap was more comfortable for me, but still have the thumb issue. I am considering sanding the square edge, or maybe talon grips. Anyone have any success fixing it?



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Old January 16th, 2017, 04:45 PM   #2
 
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When I grip the pistol correctly with the grip tang area firmly and properly seated and centered in the middle of the Y between my thumb and forefinger, it doesn't batter my knuckle at all. If I grip the gun in a matter that rotates it around in my hand clockwise (when looking at it from the top), I have the thumb knuckle problem. This happens, IMO, primarily from two situations... either the trigger reach is too long and you're cheating around OR you're shooting in an isosceles stance that is forcing the gun to rotate around a little too much for it to be comfortable. If it's the latter and you can't find a grip that works for you, it just might be that the RAP doesn't work with your hand. Honestly, I don't experience an issue with the RAP even though I fully expected it to be a problem since guns like the PPQ and Glocks and even some wooden grip revolvers cause me knuckle problems.

Contrary to what I said above, the smaller backstraps cause me more problems in this regard because they sink the hand farther into the grip and thin it out... meaning the Y between the fingers is more narrow -- and the knuckle is therefore closer to the corner edge.

I am not aware of an add-on solution to your issue. Sanding down the corner is not a good idea because the whole reason it's shaped like that is because of the beefy internal chassis structure. Otherwise you run the risk of thinning out the plastic too much. I'm thinking one of your only options if all the backstraps fail to help is to either adjust your grip, live with it, or get another gun.

Last edited by tacticalreload; January 16th, 2017 at 04:48 PM.
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Old January 16th, 2017, 05:03 PM   #3
 
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You are right, I'm cheating around because I am used to squeezing the trigger with my first knuckle of my trigger finger, rather than pulling with my finger tip. So perhaps this is just user error in how I was gripping the pistol. Like you said, when it's centered, the problem goes away. I guess I'll just have to practice changing my grip up, and Weaver instead of Isosceles. Thanks for the help!
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Old January 16th, 2017, 05:22 PM   #4
 
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Not a problem. However, the reality is that not every gun fits every person. If you can find a way to make it work, that's great. If you have to re-mold your entire shooting process around the gun, maybe it doesn't work for you. Unfortunately, that often is an expensive proposition so the former option is better than the latter.

Personally, I prefer isosceles and think it's a generally better shooting stance for the type of shooting I do most of the time (action-pistol type). When you are remaining stationary, Weaver works for some people; but when you're moving around and shooting quickly, I find that the isosceles is substantially better for me. The sights track better up and down.
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Old January 16th, 2017, 05:45 PM   #5
 
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Mine hits my thumb knuckle a little, not bad enough to dremel the frame
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Old January 16th, 2017, 06:27 PM   #6
 
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I need pictures to visualize how this occurs?????
I have three auto pistols and to be honest, the RAP 45 is the MOST comfortable grip by FAR.

Both my wife and I shoot it (and we are novice shooters) and find it to be a complete non issue, in fact more comfortable than 3rd Gen Glocks...by a margin.

So why / how are these fabulously engineered grips hurting anyone's knuckles...? Again I need to view how you hold it...

Words say some things. Pictures speak volumes so please post your shooting grip. Thanks.
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Old January 17th, 2017, 07:06 AM   #7
 
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I am out of state for the week and don't have access to the firearm. However, if you watch the Military Arms Channel review on YouTube, they clearly show the issue.
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Old January 17th, 2017, 10:31 AM   #8
 
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My experience was that it has to do with grip and with the backstrap. On my RAP 45 I've had no issues with the medium grip installed but the "thumb knuckle" issue did show up clearly when I had the large grip on as a test. As Tacticalreload says, the knuckle can end up against the corner or back of the grip and gets pounded by the recoil. The RAP's wider back contributes to this potential issue.
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Old January 18th, 2017, 04:29 AM   #9
 
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I don't know how that happens have shot 100's of rounds not one time has it hit my knuckle.
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Old January 18th, 2017, 07:35 AM   #10
 
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While it doesn't happen to me, I fail to understand how someone who owns the gun can't see how it might happen to someone else. It's obvious as described above.

It's much, much easier to feel than see; but I've tried to attached pics. In the first and second pic, you can see that the thumb knuckle clears the "corner" on the grip tang. In the third and fourth pics, you can see that it's slightly tucked under that corner. Under recoil, if you're holding the gun like in the second two pics, it puts pressure on the top of the knuckle. If you're holding the gun like in the first to pics, nothing like that happens.
Attached Images
File Type: jpg rap1.JPG (72.4 KB, 72 views)
File Type: jpg rap2.JPG (46.1 KB, 68 views)
File Type: jpg rap3.JPG (44.5 KB, 72 views)
File Type: jpg rap4.JPG (44.7 KB, 66 views)
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Old January 18th, 2017, 03:11 PM   #11
 
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Quote:
Originally Posted by tacticalreload View Post
While it doesn't happen to me, I fail to understand how someone who owns the gun can't see how it might happen to someone else. It's obvious as described above.

It's much, much easier to feel than see; but I've tried to attached pics. In the first and second pic, you can see that the thumb knuckle clears the "corner" on the grip tang. In the third and fourth pics, you can see that it's slightly tucked under that corner. Under recoil, if you're holding the gun like in the second two pics, it puts pressure on the top of the knuckle. If you're holding the gun like in the first to pics, nothing like that happens.
I can see how it might happen if you hold the gun wrong if you hold it right it will never hit your knuckle.
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Old January 18th, 2017, 04:18 PM   #12
 
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Quote:
Originally Posted by duckbuster60 View Post
I can see how it might happen if you hold the gun wrong if you hold it right it will never hit your knuckle.
Depends. Like I said previously, if you can't easily reach the trigger, you can cheat around a little and it would happen. Also, if you are someone who shoots isosceles (and you don't have double-jointed wrists), the gun will often be turned around a little in your grip and it could happen. We are really talking about fractions of an inch between clearing the knuckle and not.
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Old January 21st, 2017, 12:10 PM   #13
 
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Quote:
Originally Posted by RAP45 View Post
I recently traded for a RAP .45, and just like the MAC review showed, it does beat my thumb up. Has anyone had this issue, and then remedied it by modification of some kind? Changing to the big backstrap was more comfortable for me, but still have the thumb issue. I am considering sanding the square edge, or maybe talon grips. Anyone have any success fixing it?
I do have talon grips but that is because of arthritis not your issue. I have never had the knuckle bite myself and have difficulty understanding why folks think grip it up high, means put the web of my hand near fast moving parts. Anyway, your mileage obviously is different than mine.
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Old January 21st, 2017, 01:18 PM   #14
 
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Originally Posted by paulkalman View Post
I do have talon grips but that is because of arthritis not your issue. I have never had the knuckle bite myself and have difficulty understanding why folks think grip it up high, means put the web of my hand near fast moving parts. Anyway, your mileage obviously is different than mine.
It has nothing to do with slide bite. He's talking about the squared off corner of the grip tang smacking downward on the top of the thumb's knuckle that's closest to the palm during recoil.
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Old January 21st, 2017, 02:05 PM   #15
 
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Quote:
Originally Posted by tacticalreload View Post
It has nothing to do with slide bite. He's talking about the squared off corner of the grip tang smacking downward on the top of the thumb's knuckle that's closest to the palm during recoil.


In any event, I have not had any problems with that issue either. I have fired about 1100 rounds in the 3 months i have had my RAP


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Last edited by paulkalman; January 21st, 2017 at 07:47 PM.
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