Glock Knuckle

FYI if you ever plan to shoot IDPA SSP with it don't sand it.

I have to sand mine or they're unshootable.

1KPerDay said:

FYI if you ever plan to shoot IDPA SSP with it don't sand it.

I have to sand mine or they're unshootable.

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Why? Does someone consider that a modification that kicks it out of SSP?

yeah, you can't modify the frame at all.

I can't shoot any unmodified Glock comfortably because of the knuckle issue. I think they just don't fit my hands. With that said, I can shoot them well. I just don't want to because of the fit.

It's not the texture. It's that fact that it's a sharp blocky 90 degree edge.

I rounded the right side underneath of my trigger guard with a dremel and a sanding wheel. Then I glued some velcro to a piece of strong foam and used a strip of 2000 grit velcro backed sandpaper to smooth it out and make it shiny again. You don't have to do the entire guard, just the spot that contacts your finger. Keep in mind that most Kydex holsters index that guard. It makes the Glock feel 100 times better in the hand as well.

Noone in SSP IDPA is going to notice or care.

You pics show sanding and a little rounding, but I'm talking about a 1/4" or 3/8" radius here. I start rounding the edge at a 45 degree angle until it's taking up almost the entire thickness, then start rounding. The end result is that I don't feel the guard digging into my finger anymore, just riding on it.

I have found that I don't have a knuckle issue with the full-size Glocks. The compact and semicompact Glock's, however, have an eighth of an inch less room between the upper finger groove and the bottom of the trigger guard, and that is enough to cause me issues.

I've heard of it many times but have never experienced Glock Knuckle for myself. I typically shoot 100-150 rounds at a time, once in a great while I'll shoot as many as 200-250 in one day's session.

Maybe the Glock Knuckle is more common amongst shooters who go through a higher round count in a single session?

Or maybe a specific model or caliber? I only ever shoot an unmodified G19.

Different knuckle for me. It's on my thumb where the thumb and hand come together. That gets split open by the dip in the frame. 1 mag in and I'm sore. 2 mags in and I'm blistered. 3 mags in and I'm bleeding. Haven't made it to mag #4 on an unmodified frame.

I bought a used Glock 19 that had been sanded down and it feels NICE.

That said, I only get Glock knuckle from my 30S and my (formerly mine) G23.

The 9mm's (19, 26) and the 21 do not bother my knuckles.

I do have a better time with Gen 4 frames over Gen 3, FWIW

Sanding that area would technically knock you out of USPSA Production as well, I believe.

I undercut and "soften" the trigger guards on all my carry Glocks.

As a left handed shooter, I also knock down the edge of the mag release as well...

Edmo

Wow, my 10mm Glocks never do that ... Wear gloves.

WestKentucky said:

Different knuckle for me. It's on my thumb where the thumb and hand come together. That gets split open by the dip in the frame. 1 mag in and I'm sore. 2 mags in and I'm blistered. 3 mags in and I'm bleeding. Haven't made it to mag #4 on an unmodified frame.

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That part of your hand will harden up and cure that problem eventually.

Just make sure your choking up as high as you can and keep a firm grip.

No one stipples the trigger guard and doesn't live to regret it. I guess some people don't know any better and have to find out for themselves.

Its the main reason I cannot stand any glock smaller than full sized frames.. the smaller ones are too crowded with the finger grooves shoving your finger into the trigger guard.

In complete opposition to apparently being "Perfection" and in light of Gaston Glock being utterly unwilling to take recommendations from industry experts and actual shooters to improving his pistol- we're all stuck with Glock knuckle until the end of time. Unless you're willing to void your warranty and alter the frame.

To add my two cents I think that plastic gun frame flex also contributes to the problem. If you've ever seen some of the super slow motion video of a Glock firing you'll notice the flex between the front strap and the bottom of the trigger guard. You essentially get slapped by the gun every place your touching it while it's going through it's wiggly/jiggly firing cycle- pretty eye opening and kind of hard to believe unless you see it. The dust cover looks like it moves about a quarter of an inch when the slide hits it's most rearward point! There's some better ones out there but here's one super slow motion video.

https://youtu.be/7Fr5ccyriJI

Needless to say, Glock's are very reliable pistols for the most part and are capable of tremendous feats of reliability. Conversely I'm a 1911 guy. Pefer a steel frame gun for long range sessions- always will. After 2500 rounds through a 1911 in 3 days, my hands were smooth as a baby's butt. My buddy shot a Glock and was literally bleeding from the knuckle from which he then got infected from all the gun powder/ect. Not my idea of "Perfection"

For what it's worth-

Any gun you shoot enough will give you a callous in the same spot. No big deal. Either tape it up or just power through. Frequent dryfire will get your callous built up just as well live fire.

As far as matches, whether they check for legality of modifications may depend on many things, such as the level of the match (is it just a local, or is is a state/regional or higher). Technically you are not supposed to do any kind of undercut of the trigger guard in IDPA SSP or USPSA Production, that is true. However, realistically, the minimum amount of polishing shown the picture will not be noticed and could just be normal wear from shooting it. If you change the shape of the frame in any way, or add tape or stippling where not allowed, you will be 1000x more likely to have an issue than you are with what is in the picture.

Are your fingers "thicker" or "fleshier" than the average bear? I have shot lots of Glocks lots and lots of times and never had a mark there.

I sand the bottom of all of my triggerguards, have shot them in USPSA and IDPA, and nobody has ever harassed me about it.

I usually sand until the mold line is longer visible on the bottom or on the undercut, then "polish" it with 800 grit until smooth. Has worked wonders for me for drawing smoother and shooting smoother.

Just my .02,
LeonCarr

"In complete opposition to apparently being "Perfection" and in light of Gaston Glock being utterly unwilling to take recommendations from industry experts and actual shooters to improving his pistol- we're all stuck with Glock knuckle until the end of time. Unless you're willing to void your warranty and alter the frame."

Everybody's different. For what it's worth, I've never heard of this 'Glock knuckle' until this thread, and I've had like 11 different Glocks of all frame sizes.