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Posted: 10/25/2013 7:44:28 PM EST
[Last Edit: 10/25/2013 7:54:25 PM EST by home_alone1]
Or a forging flaw from colt. It's an older c7 colt upper. Should I be concerned ?



Here's some better pics




Link Posted: 10/25/2013 7:50:44 PM EST
[Last Edit: 10/25/2013 7:51:20 PM EST by Tumerboy]
Too small, can't tell much. But that would be a very odd place to get a crack (low stress)

Edit: looks like a scratch on the forging (pre-finish) to me.
Link Posted: 10/25/2013 7:55:44 PM EST
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Originally Posted By Tumerboy:
Too small, can't tell much. But that would be a very odd place to get a crack (low stress)

Edit: looks like a scratch on the forging (pre-finish) to me.
View Quote


Thanks. I've been worrying about it since I saw it. Haven't got to use it yet and I'm not a fan of things blowing up in my face haha.
Link Posted: 10/26/2013 2:59:22 AM EST
looks like an upper that was re coated because of big flake off...
Link Posted: 10/26/2013 3:35:58 AM EST
Oddly shaped to be a crack. Best bet it is a finish imperfection. You can always do the poor man's magnaflux. Soak with oil and sprinkle fine flour around the suspected crack. Wipe off excess flour and the part will retain flour in the cracked area. Check to see if it goes completely through the part. You'll have to oil and flour both sides. Messy, yes. But cheap and pretty reliable.
Link Posted: 10/26/2013 6:38:20 AM EST
I got one that is cracked in that area, all the way through from side to side.
I'll post pics when I get home. I bought it off EE for 10$.
Link Posted: 10/26/2013 7:38:39 AM EST
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By kickstart59:
Oddly shaped to be a crack. Best bet it is a finish imperfection. You can always do the poor man's magnaflux. Soak with oil and sprinkle fine flour around the suspected crack. Wipe off excess flour and the part will retain flour in the cracked area. Check to see if it goes completely through the part. You'll have to oil and flour both sides. Messy, yes. But cheap and pretty reliable.
View Quote

Then deep fry at 350 for 45min. Goes good with hush puppies.
Link Posted: 10/26/2013 8:39:22 AM EST
Now that's a crack !

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