Longer barrel in autoloader?


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Caliper_RWVA
January 2, 2011, 03:31 PM
I occasionally see photos of Glocks, 1911's, etc with the barrel protruding an inch or more beyond the end of the slide. In general, is it possible to put a longer barrel in an autoloader without modifying the slide?

Basically, I would be interested in a pistol with a full size barrel in a compact size frame and don't know if this is something I can do at home or is a custom job for a real gunsmith.

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9mmepiphany
January 2, 2011, 03:47 PM
Do you mean like this
http://www.qzx.com/about/firearms/glock_20.jpg

...the amount of work required to fit the barrel would depend on the gun, how much accuracy you required afterward and your personal ability

Caliper_RWVA
January 2, 2011, 04:08 PM
Yup, like that. Is fitting needed for the barrel to clear the opening at the end of the slide or where?

9mmepiphany
January 2, 2011, 04:11 PM
Fitting, depending on the platform, usually addresses the lockup at the rear and the unlocking surfaces under the chamber

ProCarryNAustin
January 2, 2011, 09:47 PM
This might get you a little extra velocity on the bullet (25-50fps or so is the usual) and length of barrel does not determine accuracy. A tightly fit short barrel will group as well as a tightly fit long barrel.

Caliper_RWVA
January 3, 2011, 11:26 PM
Yes, I am interested in the extra velocity, I understand that I won't get more accuracy unless I increase sight radius.

I'm looking specifically at 10mm and having a full size barrel on a compact frame (probably a Witness - their "compact" frame is plenty for a full grip). The data at http://www.ballisticsbytheinch.com/ suggests a 50-75 fps bump going from 3.6" to 4.5". Basically, the idea of going to a large cartridge and wasting all that powder on muzzle flash bugs me, but it seems everything with a full size barrel also comes with a huge grip that is harder to conceal on my 160# self.

james_bond
January 3, 2011, 11:36 PM
I know some states will not let you hunt with a handgun if the barrel under 5 inches, so there are folks that sell a 6 inch barrel for your Glock 20.

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