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Posted: 9/13/2004 12:28:16 PM EST
I know I read in here somewhere but now I can't find it. How do you tell what the stamping on the barrel means? I mean as far as if it is chrome or not. Could someone please explain the different stampings on the barrel for a Colt AR-15? Mines stamped C MP.
Link Posted: 9/13/2004 2:43:24 PM EST

Give this link a try for information on your Colt barrel markings...

www.biggerhammer.net/ar15/barrelsbolts

Link Posted: 9/13/2004 3:03:23 PM EST

Originally Posted By Bullet94:
I know I read in here somewhere but now I can't find it. How do you tell what the stamping on the barrel means? I mean as far as if it is chrome or not. Could someone please explain the different stampings on the barrel for a Colt AR-15? Mines stamped C MP.



Your barrel is a very early AR15/M16 type, and it is not chromed.

Chrome chamber barrels were marked C MP C

Fully Chromed barrels were marked C MP B (early) and C MP CHROME BORE (late).

These markings are for the earlier M16/ M16A1 lightweight types. Current M16A2 type barrels are marked as shown on the Bigger Hammer website.
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