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Posted: 11/22/2013 7:07:51 AM EDT
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This residue was on the bolt of this brand new rifle as well as this white mark that will not come off. Is this normal? What is this? Any help is appreciated.
http://i41.tinypic.com/2wntt8o.jpg http://i44.tinypic.com/ws2ryd.jpg |
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Thank you. I figured it was just some sort of grease or coating but I haven't handled a new in box AR since about 2005 and I didn't remember that one having grease left on the bolt. It came out of this Colt.
http://i42.tinypic.com/9ixv1g.jpg |
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Quoted:
Yup, and clean all that grease off, grease has no business being in a BCG. Quoted:
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The white mark is something Colt does to some of their bolts may be some type of test or inspection proof mark. Yup, and clean all that grease off, grease has no business being in a BCG. Been into AR's for a while, bought them off the shelf, box delivery, and built my own..this thread is the first of me seeing grease on a new rifle. Don't know why someone or company would feel the need for grease..thoughts? |
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Quoted:
Been into AR's for a while, bought them off the shelf, box delivery, and built my own..this thread is the first of me seeing grease on a new rifle. Don't know why someone or company would feel the need for grease..thoughts? Quoted:
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Quoted:
The white mark is something Colt does to some of their bolts may be some type of test or inspection proof mark. Yup, and clean all that grease off, grease has no business being in a BCG. Been into AR's for a while, bought them off the shelf, box delivery, and built my own..this thread is the first of me seeing grease on a new rifle. Don't know why someone or company would feel the need for grease..thoughts? Grease stays put longer. Firearm manufacturers have zero idea of how long that rifle may be sitting in box before it eventually gets any use. That's my guess anyway. It looks like nasty mayo, clean it off. So why does Colt use a white paint mark after it passes MPI? Don't the failed bolts get shit canned? |
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Quoted:
Grease stays put longer. Firearm manufacturers have zero idea of how long that rifle may be sitting in box before it eventually gets any use. That's my guess anyway. It looks like nasty mayo, clean it off. So why does Colt use a white paint mark after it passes MPI? Don't the failed bolts get shit canned? Quoted:
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Quoted:
The white mark is something Colt does to some of their bolts may be some type of test or inspection proof mark. Yup, and clean all that grease off, grease has no business being in a BCG. Been into AR's for a while, bought them off the shelf, box delivery, and built my own..this thread is the first of me seeing grease on a new rifle. Don't know why someone or company would feel the need for grease..thoughts? Grease stays put longer. Firearm manufacturers have zero idea of how long that rifle may be sitting in box before it eventually gets any use. That's my guess anyway. It looks like nasty mayo, clean it off. So why does Colt use a white paint mark after it passes MPI? Don't the failed bolts get shit canned? ^--- This is true. Machine stainless steel or steel or even Ti and Al parts will oxide with finger prints if not careful. Every machine shop covers everything in oil to prevent air from touching new fresh surfaces. |
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The grease on the bolt must be something new. I just bought a new Colt 6920 and it had grease on the bolt. It also had grease and on the dust cover and charging handle latch. BTW, I too like to keep a glob of moly grease in the little pocket on the upper receiver where the charge handle latches. I also prefer grease on my trigger engagement surfaces. - CW |
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Quoted:
Yup, and clean all that grease off, grease has no business being in a BCG. Quoted:
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The white mark is something Colt does to some of their bolts may be some type of test or inspection proof mark. Yup, and clean all that grease off, grease has no business being in a BCG. Looks like tw25b, that is what I use, what is wrong with that ? |
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