Convince me

[Intercooler]

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   You know!! PPE and all 

[Osageid]

Well done!

[Blades]

Congratulations on your Glock 29. Great little guns.

[DizzyDean]

Congratulations!  I've heard nothing but good things from the people that own them. I think eventually my gen3 Glock 20sf will have a Glock 29 baby brother to play with.

[10mm-Admirer]

My Gen 4 G29 has been flawless with a surprisingly smooth trigger and clean break.  It is stock except for a KKM barrel.  It has fed everything I've given it.  Accuracy is excellent.

[Patriot]

Since I'm new to the Glock world, why do you guys upgrade to KKM or Lone Wolf barrels in a brand new gun? What is the purpose or advantages over the stock barrel?

[sqlbullet]

Since I'm new to the Glock world, why do you guys upgrade to KKM or Lone Wolf barrels in a brand new gun? What is the purpose or advantages over the stock barrel?

Tighter chamber, better head support, and traditional rifling that doesn't give some people concerns about cast bullets.

I didn't upgrade mine though, and it works fine for me.

[DM1906]

Yes, for SQL's reasons. Although I have several barrels for each of my Glocks, the carry weapon, whichever it may be, is always mostly stock. Exceptions would be for combat/night sights and/or tuned RSA. I use the OEM barrels for defensive carry, because the reasons one might not just aren't a factor. I don't carry cast/lead bullets, and don't carry nukes that my blow out (although they are full power). Also, if the brass smiles or flies too far, I don't care. I won't be policing that brass if I have to use it in a SD situation. Other reasons for aftermarket barrels are increased length, porting, and cartridge caliber conversions.

[Patriot]

Yes, for SQL's reasons. Although I have several barrels for each of my Glocks, the carry weapon, whichever it may be, is always mostly stock. Exceptions would be for combat/night sights and/or tuned RSA. I use the OEM barrels for defensive carry, because the reasons one might not just aren't a factor. I don't carry cast/lead bullets, and don't carry nukes that my blow out (although they are full power). Also, if the brass smiles or flies too far, I don't care. I won't be policing that brass if I have to use it in a SD situation. Other reasons for aftermarket barrels are increased length, porting, and cartridge caliber conversions.

Is there a higher risk of jams with tighter chambers like we see in the Witness pistols or do they feed just as good as a stock Glock barrel?

[DM1906]

I've not had any issues that I didn't cause. This through tens of thousands rounds downrange, about 5-6,000 in a single LWD G20 barrel. Fat and/or long handloads can be an issue, but easily corrected. Mainstream factory ammo should never be an issue, except perhaps in a genuine combat situation, with multiple rounds fired in a very dirty environment. That many rounds fired then would mean my rifle is out of reach or out of ammo, in which case, the battle is probably lost, anyway. I carry extra mags, but have yet to hear of any (human) defense situation when more than one was ever needed.

[pacapcop]

Simply run thru a timed qual course weather NRA qualified or a local timed course. And then see how you do. I ran Underwood thru my off duty course 165's HP, timed mine you, no hiccups. Rock and roll and keep practicing. Only mode was a 22lb spring, period. All stock besides. Gen 3 full size.

[sqlbullet]

Is there a higher risk of jams with tighter chambers like we see in the Witness pistols or do they feed just as good as a stock Glock barrel?

I haven't seen any hard stats on the subject.  Most buyers feel the aftermarket barrel is just as good.  But, they are subject to several cognitive biases here that mean their statements can't be taken at face value.

From this article:  http://www.alloutdoor.com/2014/09/02/review-kkm-precision-glock-match-drop-barrel/

I noted with the 9mm barrel used in this build that the KKM barrel would not feed some of my 9mm "turds" (sloppy reloads) where the stock barrel chews through them just fine.

And

Would I run a KKM barrel in a defensive pistol? Nope. I want even the worst, beat up ammo to work each and every time in a defensive pistol barrel, and I will trade off the precision for reliability.

This leads me to believe that no, they aftermarket barrels trade some reliability for accuracy. So, unless you regularly shoot for beer or shakes, you would be well served to stick with the factory barrel.  it is plenty good for "minute of soda can" at 25 yards, and is no additional cost.

[Patriot]

Is there a higher risk of jams with tighter chambers like we see in the Witness pistols or do they feed just as good as a stock Glock barrel?

I haven't seen any hard stats on the subject.  Most buyers feel the aftermarket barrel is just as good.  But, they are subject to several cognitive biases here that mean their statements can't be taken at face value.

From this article:  http://www.alloutdoor.com/2014/09/02/review-kkm-precision-glock-match-drop-barrel/

I noted with the 9mm barrel used in this build that the KKM barrel would not feed some of my 9mm "turds" (sloppy reloads) where the stock barrel chews through them just fine.

And

Would I run a KKM barrel in a defensive pistol? Nope. I want even the worst, beat up ammo to work each and every time in a defensive pistol barrel, and I will trade off the precision for reliability.

This leads me to believe that no, they aftermarket barrels trade some reliability for accuracy. So, unless you regularly shoot for beer or shakes, you would be well served to stick with the factory barrel.  it is plenty good for "minute of soda can" at 25 yards, and is no additional cost.

That's kind of what I figured. I find that the 10mm brass is exceptionally thick, and I've had many experiences with the lip of the brass where the bullet goes in catching on the mouth of the chamber as the round leaves the magazine, especially in Witness and Delta Elites. The Witness chamber is a flat edge opening. I've been able to eliminate most jams by polishing the chamber entrance to eliminate the sharp edge, thus reducing the snag on the brass lip edge, but not all. A looser chamber opening should allow for more reliable feeding, which is what I'm hoping for with the Glock.

[DM1906]

The Glock barrel feed ramp is quite shallow, compared to the typical very steep 1911-type ramp. The magazine-cartridge presentation is also much more favorable with the Glock. I don't see the case mouth interference condition an issue with any Glock. There are just no sharp edges to catch near the feed ramp, and the presentation shouldn't allow a case mouth interference near the upper half of the chamber. The aftermarket barrels may allow this condition to be (more) possible, but I've never seen it with near-correct sized ammo in multiple calibers. The .460 Rowland has the tightest feed geometry, and it chambers without issue, so far.

[Patriot]

I picked up the new Glock 29 today. It's much wider than expected. I like the way it feels. The grip size is perfect for my hand. Hopefully I'll get to take it to the range this weekend.