M1911 Barrel Ramp Question


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CmdrSlander
June 16, 2012, 09:29 PM
I am trying to buy a new barrel for my Rock Island Armory 9mm M1911. The Stormlake website asks me what kind of Ramp I want on the barrel (No Ramp, Wilson/Nowlin, Para/Clark) which should I choose?

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1911Tuner
June 17, 2012, 05:21 AM
By "Ramped" barrel, they mean integral ramp. An integral ramp means that the frame requires machining to accommodate it. If yours hasn't been machined to accept one of the types mentioned, then you want an un-ramped barrel.

CmdrSlander
June 17, 2012, 02:38 PM
My existing barrel appears to be unramped based on the photos provided on the Stormlake website. So I will go with unramped.

Vern Humphrey
June 17, 2012, 07:17 PM
Your Rock Island is unramped, and you want the unramped or standard M1911 barrel.

rcmodel
June 17, 2012, 08:03 PM
What issue is the new 9mm barrel supposed to address?

Surely your barrel has not gone south already.

rc

wally
June 17, 2012, 10:29 PM
What issue is the new 9mm barrel supposed to address?

Extended and threaded for a suppressor?

If so, another option, not available for .40S&W or .45ACP (because the walls are too thin) is to have the barrel turned down and treaded and a threaded adapter screwed on to mount the suppressor, kind of like the Walter P22 etc.

Walkalong
June 18, 2012, 07:45 AM
Here is a pic of the different cuts in the frame for ramped barrels. I stole it from somewhere and labeled it.

http://www.thehighroad.org/attachment.php?attachmentid=166503&stc=1&d=1340019915

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