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9/15/2014 11:15:26 PM EDT
Ordered another BCM assembled upper receiver and it has some weird stake/punch mark?  Not sure what it is for, or if just a tool mistake.

Does anyone know?

Pic:
9/15/2014 11:27:41 PM EDT
[#1]
Looks like stake mark to me, but ive never seen anyone do that there. Ive never even heard of the roll pin there backing out.

Could be a botched job. i.e. the punch slipped when they were trying to get the roll pin in.
9/15/2014 11:56:50 PM EDT
[#2]
Yeah, I mean at first glance it looks like a stake, but no material is pushed into where the pin would go, so that's kind of out.

Also, I have never heard of these coming out so makes me think it's a tool mark from slipping.

Plus, its a roll pin, which needs no staking.
9/16/2014 12:12:17 AM EDT
[#3]
Weird, my brand new BCM upper doesnt have this. My guess is they missed trying to drive in the roll pin for FA
9/16/2014 12:54:25 AM EDT
[#4]
Insert "You only had one job meme"
9/16/2014 1:54:23 AM EDT
[#5]
Email em
9/16/2014 2:19:47 AM EDT
[#6]
I already did.  Just waiting to hear back.
9/16/2014 8:33:55 AM EDT
[#7]
The shape of the dimple makes it look like it was made with a roll pin punch - like the guy assembling the FA missed once with his punch.  It is NO BIG DEAL, but cosmetically it's "there," right?  Let BCM know about it.
9/16/2014 9:58:48 AM EDT
[#8]
That's what I figured.  I'm not concerned by any means, I just didn't know what it was for, or if it was something new they were doing.
9/16/2014 12:23:22 PM EDT
[#9]
Yup. That is a mark from the nipple on a roll pin punch, and given the size, looks like it was from a roll pin punch the size of the one used to drive the FA pin...someone missed on the first strike. Won't affect anything, though I agree with above statement; Let BCM know.
9/16/2014 4:40:11 PM EDT
[#10]
Tactical stake job
9/16/2014 5:08:47 PM EDT
[#11]
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Tactical misstake job
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9/16/2014 5:35:26 PM EDT
[#12]
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Tactical misstake job





Nice one.
9/16/2014 5:36:51 PM EDT
[#13]
Wouldn't bother me in the slightest.
9/16/2014 11:36:41 PM EDT
[#14]
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Tactical misstake job





Good one!
9/16/2014 11:48:12 PM EDT
[#15]
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Insert "You only had one job meme"
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You sent the "you only had one job" meme in your email to BCM correct?
9/17/2014 2:56:20 AM EDT
[#16]
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You sent the "you only had one job" meme in your email to BCM correct?
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Insert "You only had one job meme"

You sent the "you only had one job" meme in your email to BCM correct?


I'm a sucker for BCM, so I didn't.

I just asked what the dimple was for, that way I didn't look like an ass lol.
9/17/2014 3:00:32 AM EDT
[#17]
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I'm a sucker for BCM, so I didn't.

I just asked what the dimple was for, that way I didn't look like an ass lol.
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Quoted:
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Insert "You only had one job meme"

You sent the "you only had one job" meme in your email to BCM correct?


I'm a sucker for BCM, so I didn't.

I just asked what the dimple was for, that way I didn't look like an ass lol.

I'm definitely a BCM fanboy too. They probably wouldve gotten a kick out of it tho lol
9/17/2014 6:29:27 AM EDT
[#18]
Looks like it should have made the "blem" list to me.

Dave N
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