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Posted: 10/8/2009 8:50:18 PM EDT
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Ok, I'm a bit confused. I read if you change your BCG, you should have the headspace checked.
Then I read from BCM: " Professional Grade Weaponry, by BCM™ Made by Bravo Company MFG, Inc. (BCM™) These Barreled Upper Receiver Groups are designed for shooting professionals with the Mil-Spec features for the demands of their duty. They are fully assembled, headspaced, and test fired. These do not include bolt carrier groups or charging handles. " If the BCM uppers don't come with a BCG and manufacture notes say Do not include BCG, What's the deal? Does adding a BCG automatically mean you should check headspace? BCM says it's already headspaced. Please educate me. Thanks! |
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In an AR as long as the barrel/barrel extension is made properly (chambered to specs off of the barrel extension) then an in-spec bolt will headspace properly.
Ideally you should check the headspacing with any particular bolt/barrel combination. In the real world it's almost never a problem. |
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