BCM Receiver Extension Question

[Sry0fcr]

@hk_shootr

I don’t see cracks. I see voids from the forging process, would suspect the extension was too cool. When the billet or dies are not hot enough, the alloy is not as mailable, it starts to tear. It’s quite possible these are the marks you are seeing.

I’m seeing voids as well. Would not pass muster in any of my shops.

[CPM]

Nope.

[556Cliff]

@tehpwnag3

I can’t find the video but it was a surprisingly quick process, and worth posting in this thread for all to see.

I think I found the video. > https://www.youtube.com/watch?v=QG_RswsPCjo

[lsllc]

Second photo is much more clear. Looks like that’s a bad forging. Contact customer service.

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[tehpwnag3]

The one I recall was a horizontal fixture, but the end result was the same. Thanks for posting that!

@556Cliff

I think I found the video. > https://www.youtube.com/watch?v=QG_RswsPCjo

[SgtRock82]

@hk_shootr

I don’t see cracks. I see voids from the forging process, would suspect the extension was too cool. When the billet or dies are not hot enough, the alloy is not as mailable, it starts to tear. It’s quite possible these are the marks you are seeing.

Thank you, “voids” is a much better word choice

@556Cliff

I think I found the video. > https://www.youtube.com/watch?v=QG_RswsPCjo

Fascinating! Thanks for posting this video, not at all how I thought it might work.

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[Iraqgunz]

Closed until the OP reports back from BCM.

[captdreifus]

See OP for update. BCM is awesome!!!