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12/21/2009 3:48:43 PM EDT
Just ordered a new BCM Bolt Carrier Group.  It came with a little rubber washer.  What the hell is the washer for?  Thx
12/21/2009 3:52:22 PM EDT
[#1]
Extractor o-ring?

What size is it/where did it come from?
12/21/2009 3:53:22 PM EDT
[#2]
I got one too,,,I think it;s there if you need it but not part of the stock BCG
http://www.bravocompanyusa.com/BCM-Extractor-Spring-Uprade-Kit-p/bcm%20extractor%20spring%20upgrade.htm
12/21/2009 3:54:26 PM EDT
[#3]
Sounds like it came with an extra extractor O-ring.  Remove the extractor and see if there is already an O-ring installed.
12/21/2009 4:02:11 PM EDT
[#4]
Quoted:
Sounds like it came with an extra extractor O-ring.  Remove the extractor and see if there is already an O-ring installed.


IIRC, Bravo Co doesn't pre-install the O-ring, as a lot of folks don't feel the need for it.

I think they are overkill.

Tex78
12/21/2009 4:02:46 PM EDT
[#5]
My BCM upper and BCG didn't come with one at all.
12/21/2009 4:04:22 PM EDT
[#6]
I just got my bcm package today with one new FLAWLESS perfect BCG but no extra o-ring.....oh well, with a bcg like this bad boy who the hell needs extra parts!
12/21/2009 4:08:41 PM EDT
[#7]
It's really small.....you could just fit the tip of a pencil through it.  It was part of the sealed packaging of the bolt.....
12/21/2009 4:09:58 PM EDT
[#8]
Not necessary but if you decide to use it do it like this.

12/21/2009 4:12:43 PM EDT
[#9]
Throw it in the trash....  seriously.
12/21/2009 4:13:36 PM EDT
[#10]
Quoted:
It's really small.....you could just fit the tip of a pencil through it.  It was part of the sealed packaging of the bolt.....


Hell yeah pal, thanks i would of missed and you are exactly right. Until you posted that "o" in the package looked like a typical o insert on a package to hang on a display.
12/21/2009 4:16:10 PM EDT
[#11]
Both my new BCM BCG work fine with out. Just toss.
12/21/2009 4:17:34 PM EDT
[#12]
OK––thanks everyone.
12/21/2009 4:17:54 PM EDT
[#13]
Its not needed. Its for if you have some serious extraction issues.
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