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Only one person has weighed in on my QUESTION over in the rifleman's forum, so perhaps this is a question better asked in the Gunsmithing section.
Is anyone here familiar with the Crane Extractor O Ring? It was shipped with a BCM bolt carrier group I ordered. I noted that the BCG was fully assembled and that this O ring was in a separate sealed pouch (suggesting to me that it may not be needed for all applications).
Further digging here and elsewhere suggests it's really only needed for carbine builds, specifically for carbines to be used full auto. The one response I got over at Riflemans Forum suggested it may extend the life / function of the extractor with reduced wear on the extractor spring.
No where have it seen it said that it will cause problems to use it in something else, but I'm wondering if there are any downsides to using it in a 24" rifle build. Also, if it should be used, I wanted to confirm that it simply slips over the extractor spring, or if there is some other location it should be used. If it's anything other than a matter of slipping the O ring over the spring, pictures or a description of the install would be appreciated.
I tried to call the vendor early this morning and was told (by their message) to email. I sent them an email and have not received a response. It's only been a day now, but I grew up in the 80's so I need that instant gratification.
As an aside, I noted that the O ring sent seems to be broken (a "C" ring?!!!), so I'll be waiting to hear back from the vendor on that too.
Anyone?
Dwarf
Is anyone here familiar with the Crane Extractor O Ring? It was shipped with a BCM bolt carrier group I ordered. I noted that the BCG was fully assembled and that this O ring was in a separate sealed pouch (suggesting to me that it may not be needed for all applications).
Further digging here and elsewhere suggests it's really only needed for carbine builds, specifically for carbines to be used full auto. The one response I got over at Riflemans Forum suggested it may extend the life / function of the extractor with reduced wear on the extractor spring.
No where have it seen it said that it will cause problems to use it in something else, but I'm wondering if there are any downsides to using it in a 24" rifle build. Also, if it should be used, I wanted to confirm that it simply slips over the extractor spring, or if there is some other location it should be used. If it's anything other than a matter of slipping the O ring over the spring, pictures or a description of the install would be appreciated.
I tried to call the vendor early this morning and was told (by their message) to email. I sent them an email and have not received a response. It's only been a day now, but I grew up in the 80's so I need that instant gratification.
As an aside, I noted that the O ring sent seems to be broken (a "C" ring?!!!), so I'll be waiting to hear back from the vendor on that too.
Anyone?
Dwarf
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