Glock Tolerances

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the young gun

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Hello, Recently purchased a glock 21 sf in .45 auto.

It's highly possible that I was in such a daze while handling it that I didn't look too carefully at the tolerances on this gun. I've shot glock before, never noticed it, but this being the first pistol I've ever purchased, I'm looking for some input.

There is quite a large gap between the bottom of the slide, and the top of the "frame rails" on this gun, you can see about 2-3 millimeters of light shining through the gun when you hold it up, it also seems sort of loose, the frame that supports under the recoil spring assembly knocks around when you shake the gun or push on it. I've read that it's supposed to be a little looser for .45 to account for the increased recoil and "flexing" of the gun.

Should this worry me? The gun hasn't been fired or anything, I can also provide pictures if needed.


Thanks!

Young Gun
 
I have a G17 and when I have a dummy round chambered I can see it between the slide and the frame rail.
Hasn't been an issue at the range, so I think its ok.
 
the young gun said:
Hello, Recently purchased a glock 21 sf in .45 auto.

It's highly possible that I was in such a daze while handling it that I didn't look too carefully at the tolerances on this gun. I've shot glock before, never noticed it, but this being the first pistol I've ever purchased, I'm looking for some input.

There is quite a large gap between the bottom of the slide, and the top of the "frame rails" on this gun, you can see about 2-3 millimeters of light shining through the gun when you hold it up, it also seems sort of loose, the frame that supports under the recoil spring assembly knocks around when you shake the gun or push on it. I've read that it's supposed to be a little looser for .45 to account for the increased recoil and "flexing" of the gun.

Should this worry me? The gun hasn't been fired or anything, I can also provide pictures if needed.


Thanks!

Young Gun
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You have bought a junker, sad to say. I'll give you $25 for parts....

Alright, in reality that is normal. For any caliber of Glock. Don't worry about it.

However, if it bothers you a lot, I'm serious about the $25.....:p
 
If I look carefully I can see through my G17 and see the guide rod spring. Not a big deal, most (If not all?) I've seen were like that. My guess is that those tolerance allow the water to come out if you submerge it :p

It's a great shooter and it's very accurate, the slide doesn't wiggle on the frame anyway...
 
It's normal, and it's no problem.

Trigun said:
It is normal for Glock but not likely happened on the other plastic gun.
Click to expand...

The S&W M&P is the same. They're affordable, reliable, duty pistols built for hard use.

They ain't made for no art show.
 
I felt the same after I got my G17. I was worred at first but it really is how those guns are built. Ive shot thousands of rounds and no problems. I have to say that if i can find a gun that feels as good in my hands as a glock but its made of metal, then ill buy it. I cant look through my Beretta 92FS but it just doesnt fit my hands as well. However, my next purchase will be a .45ACP also but it wont be a Glock 21. It will be a 1911 style pistol. Just got to get to Edmonton to hold a few in my hands.
 
glocks are combat/duty pistols first...they are meant to shoot no matter what... with that comes the sacrafice of match grade accuracy...remember, a glock is not picky...i had a few, absolutely non of them, even with modifications ever malunctioned for me....if you want tight tolerances, get ready to pay at least double...the 21 is built very well...a lot of my buddies like theirs....i am looking forward to getting my glock 21 in the next 6 months...have fun and learn to shoot it
 
It's fine as-is. Glocks are supposed to be loosely fitted. Few people can shoot well enough that they are limited by the mechanical accuracy of the pistol.

Slide-to-frame fit is grossly over-hyped as a contributing factor to the accuracy of any auto pistol, anyway. Fit of the barrel to the bushing and locking recesses is far more important.
 
If you look closely, you'll see there's an arch in the frame. It seems to be built in to provide a tighter fit to the slide. It's probably an engineering marvel, to pre-flex a piece of plastic to make it as stiff as steel.
 
I shot 50 rounds out of a Glock 17, and I couldn't tolerate one more. Thank God it was a rental, but I still wanted my money back... what a waste of ammo.
 
http://www.theprepared.com/index.php?option=com_content&task=view&id=90

This blog should be a testament to how much a Glock can tolerate. This thing will keep kicking ass when it should have broke long ago.
 
Ski911 said:
I shot 50 rounds out of a Glock 17, and I couldn't tolerate one more. Thank God it was a rental, but I still wanted my money back... what a waste of ammo.
Click to expand...

bcsteve said:
Care to explain?
Click to expand...

Sure, why not.
To me, the gun felt as though it were a cheaply made toy, as though it were going to break if I looked at it from the wrong angle. In fact, I have handled and used water pistols that were better designed and built. The trigger was the most god awful thing I have ever used to actuate the function of a machine. It reminded my of the Electronic BBQ lighter on my grill outside, except with about 9lbs pull weight. Even loading magazines was such a PITA I was overcome with bouts of depression after the first 5 rounds.

Accuracy was dismal at best, my old Ruger P-85 with 55,000 rounds down the pipe was better and that is pretty rough.

There are far better guns out there for the same or a little extra cash, and in the case of the old P-series Rugers, almost half the cash.

I have owned and or fired around 30 different makes and models of pistols, and this is the one that I would least like to try again. How anyone could feel these are quality units is beyond me. Combine the poor fit, finish and feel with dismal performance and the fact that it is as user friendly as a badger, and you get a handgun that in my opinion wasn't worth the price of the box of ammo I fired out of it. Your mileage may vary.
 
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