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AR15.COM
11/19/2010 6:23:15 AM EDT
I have a 20" stainless steel heavy free floated barrell with a screw in FSB.  I want to have it cut down to 16" with a midlength gas system.  

My question is; what do you do with the rifle gas port since it will not be cut off?  

As far as cost, I estimate $173.00 plus shipping
cut & thread                       $65
Mill flats for FSB                 $40
disassemble/reassemble   $55
gas tube                             $13


Does this sound about right?
11/19/2010 11:57:39 AM EDT
[#1]
Well, it is $173 is good for what you have listed, but that will NOT cover the gas port relocate, so your gun may not  work. ;-)

 You will probably need a $65 contour for the new FSB area, as well as the gas port relocate ($35).

We plug to old port with a threaded set-screw.  
11/23/2010 9:42:38 PM EDT
[#2]
Quoted:
Well, it is $173 is good for what you have listed, but that will NOT cover the gas port relocate, so your gun may not  work. ;-)

 You will probably need a $65 contour for the new FSB area, as well as the gas port relocate ($35).

We plug to old port with a threaded set-screw.  


How much is the gas port relocate work?

Also, i have a BCM mid-length barrel that i want to cut from 16" to 12.5". Would it be wise to open up the port or to simply relocate it at carbine length?

This won't be a work gun, so that's why im not skipping the chopping part right to the new carbine set-up. Im exploring the options at this time. Stick in question

Thanks

J