Is a barrel and mag all I need to convert G30 to G29?


PDA






BehindTheIronCurtain
April 19, 2012, 11:41 AM
Do I just swap out the barrel and get anew mag and ammo? Or is there more to it? Does the firing pin need to be adjusted?

If you enjoyed reading about "Is a barrel and mag all I need to convert G30 to G29?" here in TheHighRoad.org archive, you'll LOVE our community. Come join TheHighRoad.org today for the full version!
ku4hx
April 19, 2012, 11:59 AM
Per Glock, the barrels of the G30 and G29 are not interchangeable. Even Lone Wolf doesn't market for that conversion.

Walt Sherrill
April 19, 2012, 12:25 PM
Barrel diameters are different, and there'd be SLOP when the 10mm barrel was used in the .45 slide.

With this type of conversion, after-market barrel makers also adjust the conversion barrel so that head space is correct, and the extractor works without problems.

I've seen Glock caliber changes done with other calibers USING STOCK GLOCK BARRELS -- as with a 9mm barrel used in a .40 slide -- and at least some of them can work with surprisingly little degradation in accuracy. But, I'd be hesitant to try moving from .45 to 10mm. I haven't seen or heard of that done.

In terms of stopping power, I wonder whether the standard (commercial) 10mm loads would be all that superior to the .45. Load both to their performance peak and you might find the 10 mm a better round in a full-size gun, but with a short (sub-compact) barrel, I wonder if you can really get the expected performance.

RhinoDefense
April 19, 2012, 01:04 PM
I've had a KKM conversion barrel in a G30 for years. Never had an issue. Just the barrel and mag change.

Dan-O
April 20, 2012, 12:01 PM
Read the posts by "DesertScout". He has pictures, and he had some video at one time, but it looks like the videos have been deleted, showing that you can take a non conversion G20 10mm barrel and put in a G21, and it works just fine.

http://glocktalk.com/forums/showthread.php?t=938598

I initially did this as well, and never had any issues just using a stock G20 barrel in a G21 frame. I did use G20 mags. I eventually found a 2nd gen G20, and I had to jump all over that, so I don't do the "conversion" anymore.

So to answer your question, I don't see any reason why you couldn't do the same with a G30/G29.

f451
April 20, 2012, 08:59 PM
Be cautious on this conversion!
the switch from 9 to 357 sig is a barrel and mag, no problem. Siych between 357 sig and 40 is barrel only.
the conversion your talking about is somrthing you can do but is not the norm. Have your gunsmith nearby on this one!
Remember, no one lives to be old and wise by being young and foolish
;)

f451
April 20, 2012, 09:00 PM
By the way, the 357 sug round isoutstanding! A touch over 1 inch drop at 100 yards. Sucks that ammo is so high.

Sam Cade
April 20, 2012, 11:36 PM
Be cautious on this conversion!
the switch from 9 to 357 sig is a barrel and mag, no problem

No.

It is not possible to convert a 9mm Glock to any other caliber without replacing the complete upper and ejector.

BehindTheIronCurtain
April 20, 2012, 11:47 PM
Thanks for the help guys, KKM makes a drop in barrel to convert my g30 to 10mm $165 and no further stun smithing, ejector problems may occurs, but unlikely.

RhinoDefense
April 21, 2012, 12:45 AM
^ Yes.

IdahoSkies
April 22, 2012, 01:32 AM
A g29 is a 10mm pistol, the rim and base diameter are 10.85 and 10.81 mm respectively. The G30 is a .45 ACP pistol, the rim and base diameter is 12.2 and 12.1 mm respectively. You need a new slide and barrel and mag. The frame is the same and rails will fit the slide, but the case sizes require a different slide.

MachIVshooter
April 22, 2012, 01:46 AM
A g29 is a 10mm pistol, the rim and base diameter are 10.85 and 10.81 mm respectively. The G30 is a .45 ACP pistol, the rim and base diameter is 12.2 and 12.1 mm respectively. You need a new slide and barrel and mag. The frame is the same and rails will fit the slide, but the case sizes require a different slide.

This. It'll feed and fire, but extraction and ejection problems are very likely with a .45 Slide.

RhinoDefense
April 22, 2012, 10:48 AM
You need a new slide and barrel and mag. The frame is the same and rails will fit the slide, but the case sizes require a different slide.
This is false. I have ran my G30 with a KKM Precision 45-10mm conversion barrel and G29 magazines for 6 years. You do not need a new slide. I've never had a problem with extraction or ejection using the G30 slide and conversion barrel for 10mm. The case sizes do not require a different slide.

Have you personally used a conversion barrel in the G30 with G30 slide? Doesn't sound like you have. I have for 6 years. I know what I'm talking about from personal experience. You don't seem to be doing so.

Walt Sherrill
April 22, 2012, 10:57 AM
You need a new slide and barrel and mag. The frame is the same and rails will fit the slide, but the case sizes require a different slide.
This is false. I have ran my G30 with a KKM Precision 45-10mm conversion barrel and G29 magazines for 6 years. You do not need a new slide. I've never had a problem with extraction or ejection using the G30 slide and conversion barrel for 10mm. The case sizes do not require a different slide.

His statement isn't exactly FALSE, as it appears to assume the use of STOCK barrels rather than CONVERSION barrels. The original poster asked about just swapping barrels and mags, and didn't address conversion barrels.

Conversion barrels have mods to compensate for critical differences (like barrel diameters, head space and extractor function.

That said, I've seen STOCK barrels used in Glocks, like a 9mm barrel used in a .40 slide, and they shot surprisingly well with little degradation in accuracy. That isn't what you'd expect. I don't claim this would be true of a 45>10mm swap.

If you enjoyed reading about "Is a barrel and mag all I need to convert G30 to G29?" here in TheHighRoad.org archive, you'll LOVE our community. Come join TheHighRoad.org today for the full version!