Ruger MK1 barrel replacement

flutedchamber · June 25, 2007, 01:51 AM

Can anyone tell me how to remove the barrel from the receiver on the Ruger MK1 pistol ? It seems to be pressed in place, and I can see no retaining pins. This makes me assume that the barrel is pressed against a shoulder in the receiver and therefore must be pressed into the receiver to remove it.

Thanks for your help.

Jim Watson · June 25, 2007, 06:57 AM

It is screwed in very tightly.

James K · June 25, 2007, 12:16 PM

I have no idea why you want to replace the barrel, but I would send it back to Ruger. It is easy to mess up with those guns, because of the way they are made.

Jim

Scorch · June 25, 2007, 12:57 PM

You can have a smith put it in a barrel vise and unscrew the barrel, but it is easy to crush the receiver and ruin the pistol. Best bet- send it to Ruger for a new barrel. Call ahead and tell them what you are looking for, you will get good service and good quality parts from the factory.

James K · June 25, 2007, 10:52 PM

Those barrels are not installed in the way most folks think. They thread a piece of thick wall tubular steel at one end. Then they screw in the finished barrel and really tighten it. Then, using the feed ramp as a reference point, they cut the ejection port and do all the other work on the receiver.

Just machining the ejection port causes a "merging" of the parts, making the barrel very hard to remove.

Jim

**4V50 Gary** · June 26, 2007, 12:10 AM

I'd send it to Ruger. Now, if you don't want to send it to Ruger, consider having it relined.

Slopemeno · June 26, 2007, 10:45 AM

FWIW mine came off quite easily. I did the whole deal with cerro-safe barrel-wrench jaws, etc, primed my self to really lean into it...and, it just unscrewed. Pretty anti-climactic, really.

flutedchamber · June 27, 2007, 01:06 AM

Thanks guys for your responses. The reason I want to remove the barrel is to replace it with a bull barrel and then install adjustable sights on it.

June 25, 2007, 01:51 AM	#1
flutedchamber Member Join Date: July 14, 2005 Location: New Jersey Posts: 61	Ruger MK1 barrel replacement Can anyone tell me how to remove the barrel from the receiver on the Ruger MK1 pistol ? It seems to be pressed in place, and I can see no retaining pins. This makes me assume that the barrel is pressed against a shoulder in the receiver and therefore must be pressed into the receiver to remove it. Thanks for your help.

June 25, 2007, 12:57 PM	#4
Scorch Senior Member Join Date: February 13, 2006 Location: Washington state Posts: 15,248	You can have a smith put it in a barrel vise and unscrew the barrel, but it is easy to crush the receiver and ruin the pistol. Best bet- send it to Ruger for a new barrel. Call ahead and tell them what you are looking for, you will get good service and good quality parts from the factory. __________________ Never try to educate someone who resists knowledge at all costs. But what do I know? Summit Arms Services

June 26, 2007, 12:10 AM	#6
4V50 Gary Staff Join Date: November 2, 1998 Location: Colorado Posts: 21,838	I'd send it to Ruger. Now, if you don't want to send it to Ruger, consider having it relined. __________________ Vigilantibus et non dormientibus jura subveniunt. *Molon Labe!*

June 25, 2007, 06:57 AM	#2
Jim Watson Senior Member Join Date: October 25, 2001 Location: Alabama Posts: 18,541	It is screwed in very tightly.

June 25, 2007, 12:16 PM	#3
James K Member In Memoriam Join Date: March 17, 1999 Posts: 24,383	I have no idea why you want to replace the barrel, but I would send it back to Ruger. It is easy to mess up with those guns, because of the way they are made. Jim

June 25, 2007, 10:52 PM	#5
James K Member In Memoriam Join Date: March 17, 1999 Posts: 24,383	Those barrels are not installed in the way most folks think. They thread a piece of thick wall tubular steel at one end. Then they screw in the finished barrel and really tighten it. Then, using the feed ramp as a reference point, they cut the ejection port and do all the other work on the receiver. Just machining the ejection port causes a "merging" of the parts, making the barrel very hard to remove. Jim

June 26, 2007, 10:45 AM	#7
Slopemeno Senior Member Join Date: January 19, 2007 Posts: 2,663	FWIW mine came off quite easily. I did the whole deal with cerro-safe barrel-wrench jaws, etc, primed my self to really lean into it...and, it just unscrewed. Pretty anti-climactic, really.

June 27, 2007, 01:06 AM	#8
flutedchamber Member Join Date: July 14, 2005 Location: New Jersey Posts: 61	Thanks guys for your responses. The reason I want to remove the barrel is to replace it with a bull barrel and then install adjustable sights on it.