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Posted: 5/8/2005 8:02:10 AM EDT
| I bought a new M16A1 upper from dennys guns and was told it was a colt the only markings that i can find on any part of this upper is the cmp chrome bore stamped into the barrel.How can i find out if the upper receiver is also colt for my piece of mind!! Thanks to all that reply!! |
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Look at the area just above and to the right of the ejection port. A Colt built upper will have two very small stampings in that area; a small square, and a triangle. You may need a strong light and a magnifying glass to spot them, or they may be very visisble; depending on how deep the stampings were at the factory. |
I think these markings were only applied to uppers that shipped as part of a complete M16 rifle. So, if your upper was shipped from Colt as a replacement part these very faint square and triangle markings may not be present. Joe |
You upper has an MPC marked bolt, a 'C' marked carrier, MP C marked barrel and a C on the forged front sight. The marks are by the ejection port. Very faint after the anodizing, but they are there. The C H mentioned above came much later. Also your upper is very early Colt Grey. No other MFG for Viet Nam era used that color, most others were dark charcoal or some had a gold tint. Denny |
The uppers Denny has are legit (as I have some as well). C4 |
FNMI is not Colt, it is FN MANUFACTURING, LLC a subsidiary of Fabrique Nationale Herstal. Known to most as "FN". Most that are stamped FNMI are excellent barrels made for the Military, and only a few find their way into civilian hands (I have one too), as FN does not sell M16 parts to the public. FNMI barrels must go through the same strict quality control that Colts do for Military acceptance, they are great barrels. FN and Colt proof EVERY barrel, unlike Bushmaster, who only does random spot checking, yet still stamps every barrel "B MP". And of course many other manufacturers do no MP proofing at all. Treasure your FNMI barrel! FNMI rollmarked M16A2 barrel by FN Herstal - 1/7 twist, chrome-lined, fully magnetic particle proofed.  ETA: Not trying to disrespect Bushmaster or any othe mfg'er. |
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Thanks DR Any idea when FN started making them? There are no other markings ont it. it doesn't even have the twist or caliber markings....just FNMI MP Chrome Bore. Bolt is MPC, carrier unmarked. Upper just has the triangle/square stamps, no forging codes. FSB is marked 3 R and a crown it looks like..... I'm not versed on my M16 markings.......... Thanks |
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