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Posted: 10/24/2004 5:11:09 PM EDT
Can you tell from this pic if the bore on this barrel is chrome lined? Another pic, illuminated with a Surefire L2  
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Not really but that thin silver ring could be a reflection or it could be chrome. How about a chamber shot. 
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| The marking is C MP 5.56 NATO 1/9. The barrel is dated from '99. Purchased from YTM (now out of business). It is a cut down HBAR as the very edge of "H" is visible. Word on the street back then was it was machined into M4 profile for police that wanted a 16" M4 1/9. As Colt was only making 1/7 M4s they took some HBAR stock and machined them. It appears no different than my other Colt and BM barrels when viewed down the bore. All of them have the uniform platinum coloring. There is a chrome ring visible in the bore when viewed from the chamber. |
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If it started life as a 1in9 HB, I'd have to assume that it has a chrome lined chamber only. The pic does seem to show a tiny bright ring at the barrel crown, but my hunch is that's just where the crown cutting tool took off the finish. You can test it though by putting a drop of instant blue on the ring. If it takes the blue, then it's just bare steel. If it doesn't take any color, then it's a very narrow overplating of the chrome. |
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