normal. don't lose any sleep over it.
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normal. don't lose any sleep over it.
"those feedramps don't look very well matched up"
+3
Is this something I should take to a gunsmith to confirm?
I'd speak with s&w first and send them these pics and maybe some more. I'm not an expert but from the pics you posted i'm not impressed with the fit.
The only other smith ar part i've handled was a lower and i have the same feelings about it's quality.
Maybe, depending on their response.
I'd try to find a dealer that is very familiar with AR-15's, ask if they do much smith work on them. If they give you a lukewarm "meh" answer, walk away. If they give you a sincere confident affirmative, then I might consider going to the next step of asking how much to mate/smooth out some feed ramps. I wouldn't think it would be too much, probably as much in shipping to return it to the manufacturer.
But then again, if it ain't broke...
I emailed SW - I hope that I will get a response. Afterall the rifle is brand new so I figure it must be covered by their warranty. I hope they can direct me a an authorized dealer who do the gunsmithing. Only having fired 40 rounds there didnt seem to be a problem with it but somehow I think they should cover smithing it and the shipping.
Do you think thats what cause the marks ? Or the crappy mag?
The marks are unrelated to what these guys are talking about. You're going to see copper smeared there even if the fit between the barrel extension and and upper receiver was perfect. You'll see brass smudges and shavings here and there too...all part of the game.
S&W may or may not think it's an issue, but if it is, you won't be sending the gun off locally...it'll go all the way back to S&W.