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AR15.COM
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10/26/2002 11:48:04 AM EDT
Hello
Been watching the board off and on for a while, the past few days more on than off.

Well I am mainly a bolt-gun man, but just today I bought a stripped RRA lower. My first semi-rifle in YEARS. Had a bad experience accuracy-wise with a Ruger Mini-30, a HK-91 [pre-ban] and swore them off. Until now.

Gonna fill all the little holes as time-money permit.

Was just wondering, can a home-gunsmith headspace a barrel to an AR upper without a lathe?

I see this thing ending up as a flat-top long barreled configuration.

10/27/2002 4:06:12 AM EDT
[#1]

Quoted:
You can’t really reset the headspace on an AR15 with a chrome-lined chamber. That is set when the barrel extension is installed on the barrel. If you have an unlined barrel, with short headspace, a gunsmith can adjust it by cutting the chamber deeper with the appropriate chambering reamers. If the headspace is long, or the chamber chrome-lined, the only option is to try a different bolt until headspace checks good, or you run out of bolts. Then it is time for a new barrel.



This should explain it for you. When you buy a barrel; the extension and the alignment pin should already be on it. I built an AR with a new barrel from Pete-in-NH and after assembled checked the headspace with a go and no-go guage just to be sure and all checked out ok. So unless you're using a used barrel and/or bolt, I don't think you really need to check it unless for personal satisfaction.


10/27/2002 4:18:52 AM EDT
[#2]
Also....just wanted to say that RRA is a good choice.  Thats what I started with; a RRA stripped lower; and the stripped upper was also RRA along with the rest of the parts and its a real great shooting rifle.  Not a bit of problem with it. No jams, no failure to feeds, no short strokes, etc.  Every time the trigger is pulled, it does what its suppose to.
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