Converting A Glock 27 (.40 Cal.) To A 9MM???

K

Kentucky Rifle

New member
About a week ago I received a phone call from a friend in another state who wanted to know if this conversion could be done safely. We both had purchased our 27's the same month a couple of years ago. I love mine and so did he, until the stories began to get to him. "Unsupported chambers" and "K-boom" horror stories have gotten to him. I tried to talk him out of it, but he wants to give it a try. I asked if anyone had done the conversion on "Glock Talk" and to my surprise, some had. Quite successfully too. It turns out that all that is needed to make the switch is a 9MM conversion barrel (same outside diameter as the .40 caliber barrel) and a 9MM magazine. Some had used Olympic Arms for the conversion barrel. So, I sent Oly an e-mail and they responded that indeed they do offer a conversion barrel. However, the barrels are not in stock and it would be 2-3 months before they are ready to ship.
I'd like to know if anyone has tried this conversion and been successful. (And pleased with the outcome!) Also, what company did you use for the conversion barrel?

Thanks,
Will


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Mendacity is the system we live in.
 
IMHO, the horror stories about 27's Kabooming and the whole unsuppoerted chamber arguments (Who cares unless you reload) are just a pot o crap. My 27 has NEVER misfed, and is so spooky accurate it makes me look good. If I HAD to shoot someone, I would rather have my 27 in hand then anything else, becuase I have put a crap load of rounds through it and have the utmost confidance in it. It is the most versitile handgun on the market today.

Besides, I've seen what it will do to a plate glass windows... :D
 
Converting seems to me a lot harder then than a barrel change.Enough difference in base diameters to maybe have a extraction problem.
Most kabooms with glocks are easly tracable to owners.Too hot a reloads for one.The other is the old thing about well lets shoot some lead and follow with a jacketed round to clean the lead out of the bore.Chamber pressure can get REAL high.If you handload watch your loads.If you shoot lead clean the barrel real well.The 40 is a far better round then the 9.Don't change just leave it and watch what you do and you will have no problems.

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Bob--- Age and deceit will overcome youth and speed.
I'm old and deceitful.

[This message has been edited by beemerb (edited August 15, 2000).]
 
The 40 can be converted into 357sig and vice versa via a simple common barrel swap. To convert a 40 into a 9mm you could do two things.
1. Use a common 9mm barrel and switch out the extractor. OR
2. Buy a conversion barrel specifically made to swith the 40 into a 9mm without switching extractors. So I have read in GT.
My experience is with a Beretta 96. Just a simple barrel swap. Worked perfectly. I would not trust conversions with my life, just for fun range time.
 
Fellas,
Your preaching to the choir here! I love my G27. Maxinquaye: "Spooky accurate" is a good way to describe the 27's. I've had mine about 2 years and I'm still amazed every time I go to the range. Even my wife who is a fairly new shooter likes to shoot my G27. I always use Hydra-Shoks or Cor-Bons. Never a problem or malfunction.
My friend is in Tenn. Every time he goes to his range someone tells him a Glock horror story. He calles me at night, afraid that his G27 is going to "K-Boom". I tell him that if he uses ONLY factory ammo (he does), nothing is going to happen. He calms down, but the next time he goes to the range someone else tells him a horror story and I get another phone call.
It seems to me that, after two years, he would dismiss the horror stories but he doesn't. He wants to make his .40 cal a 9MM.
By the way. For a short time I owned a G26. (I gave it to a Glockless relative. I didn't really want to, but I made someone happy. :)) When I shot the 26 & 27 side by side, I didn't notice much difference in recoil. Was I just not paying attention?

Will

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Mendacity is the system we live in.
 
If your buddy wants 9mm for practice, he has to get a .40 to 9mm conversion bbl (not plain 9mm - the tube and hood dimensions are different between 9mm and .40). Just swap the bbls and he is ready. He may have to use 9mm magazine, or he may be able to do without it.

To use such conversion for carry, he will need, bbl, 9mm extractor, 9mm ejector, 9mm mags. Also it probably wouldn't hurt to ream out the chamber, due to the fact that all aftermarket bbls have tighter chambers than Glock factory ones. That's it. Conversion would take about 5 minutes.
 
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