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Posted: 11/5/2004 7:20:30 PM EDT
| I'm trying to see if my barrel has chrome lining. I have a bore light and for the life of me I can't tell if it is chromed or not. Anyone have a pic of the chrome or a suggetion on how I can tell? I'm looking at a non-chrome lined one and one that is supposed to be lined and it's hard to tell a differance. Barrel is just too thin to see clearly. |
Who built the upper? If it is a true Bushmaster upper it is chrome lined, same with Colt. All the others you can pretty well doubt it, but there is a test. Take of the hand guards and look for a stamping on the barrel "CMP" and if you have that mark you have a chrome lined barrel. If all you have is "MP" then all you have is a magnetic particle tested barrel with no chrome. If you have niether then you probably do not have a milspec barrel at all and more likely than not you have no chrome. Good luck.
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| yeah I was lookin for the bbl stamp in the wrong place. It is under the handgaurds, although I didnt need to take em off. Just looked into the holes with a borelight. It is a CMMG upper anf it says CMMG MPC 5.56 NATO 1-7. So I guess that answers my question. Thanks! |
Not trying to be smart. What if you have a Bushmaster upper and it is marked "MP 1/9 5.56". Is it chrome lined or not? I think mine is because, I can see a fine ring of hard chrome (like a light frosting of ice) around the muzzle. |
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His barrel is marked correctly, but that is odd that your BM barrel is not marked with the "C". The only way to get a BM without chrome is to get the SS model or a DCM gun from them. I wonder if they are getting the barrels chromed after they are built and shipped to them?
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| The only Bushmaster barrels that are not chrome lined are the SS, varminter, and DCM models. All others are lined. Bushmaster barrels are marked BMP. B for Bushmaster, M for magnetic partical tested and P for proof load tested. CMP is what Colt marks their barrles with. Some older Colts acually have CHROME BORE stamped on the barrel. |
Thank you much!! |
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