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AR15.COM
8/3/2012 7:06:59 PM EDT
After wiping the stinky packaging oil off of this BCM rifle's lower, I noticed some nasty looking machining marks near the rear take-down pin. Didn't give it much thought, but decided to send an email to BCM anyway. After showing them the pictures, they said they were handling marks from the test fire process, which I don't think is the case.

I've seen plenty of lowers, and something like this is what I'd expect from a lower sold as a blem. Thoughts?

http://i46.tinypic.com/9r62wl.jpg

http://i49.tinypic.com/6nwow4.jpg
8/4/2012 9:19:35 PM EDT
[#1]
I couldnt find the blem on my blem lower. But my upper has several flaws and was full price. Go figure.
8/11/2012 3:50:45 AM EDT
[#2]
Do feel like there is something functionally wrong with your lower, or are you literally whining about something cosmetic on the inside of your rifle?  BCMs aren't collectables, they are shooters. Go shoot the thing.  While you're at it, buy a can of Aervoe and spray it down with your favorite dull color.
8/11/2012 4:15:13 AM EDT
[#3]
Holy shit!  I've seen alot of whining on here about chicken shit blems on the outside, but this is the first time I've ever seen someone bitching about tiny insignificant marks left on the inside of a lower, most likely the result of BCM taking the time to actually test fit it to an upper.
8/13/2012 9:57:22 AM EDT
[#4]
Quoted:
After wiping the stinky packaging oil off of this BCM rifle's lower, I noticed some nasty looking machining marks near the rear take-down pin.

I've seen plenty of lowers, and something like this is what I'd expect from a lower sold as a blem. Thoughts?



Tool marks are not uncommon inside receivers.  Large material removal at higher speeds can create tool chatter.  If you take the hammer and trigger out, you will see it is uneven as well.  The weapon system is filled with rough areas once you start really looking.  

8/13/2012 5:20:48 PM EDT
[#5]
Plus, depending on how they rack the receivers, those shiny spots can be left behind from the anodizing process.
8/14/2012 7:29:35 AM EDT
[#6]
Quoted:
Quoted:
After wiping the stinky packaging oil off of this BCM rifle's lower, I noticed some nasty looking machining marks near the rear take-down pin.

I've seen plenty of lowers, and something like this is what I'd expect from a lower sold as a blem. Thoughts?



Tool marks are not uncommon inside receivers.  Large material removal at higher speeds can create tool chatter.  If you take the hammer and trigger out, you will see it is uneven as well.  The weapon system is filled with rough areas once you start really looking.  


Spot on; it takes a long skinny tool to make that pocket, this leads to tool deflection.  Until one creates a tool whose Young's Modulus approaches infinity, we'll have to live with it.


Posted Via AR15.Com Mobile
8/14/2012 8:01:13 AM EDT
[#7]
Thoughts? I think you need another hobby, where you can obsess over dumb shit.
8/14/2012 9:34:26 AM EDT
[#8]
Quoted:
Thoughts? I think you need another hobby, where you can obsess over dumb shit.


One with less stinky packaging oil...
9/19/2012 5:40:34 PM EDT
[#9]

Dude,  Seriously ?  After 29 posts your bashing BCM !!!
Can you say I am obsessive over dumb shit?  Those are from the endmill that was used to remove the material that was not needed.  Yes they can produce them without the marks if you would like to pay at least 20% more.  I'm sure BCM would reduce their feeds so you can not have a lower free of any and all pits, dents, dings, scratches, or tool marks.  

LMAO,  this is sooo funny.  Whinning over tool marks inside a lower.

Check this out... did you know that everytime you pull the trigger your actually destroying the inside of your barrel a little at a time.  
no way !
Yeah, no lie!  Also your trigger and bcg and upper reciever and the list goes on and on...

Maybe you should take up bird watching or chess or knitting.
BTW, I will gladly take that scratched up BCM lower off your hands and I swear to try and wear those dam tool marks completely out.
10/26/2012 3:09:32 PM EDT
[#10]
Went ahead and took the trigger group out for kicks, and, more tool marks. I think my lower is going to break in half, help.

http://i45.tinypic.com/292afdc.jpg

In all honesty though, when you pay top dollar for a rifle, it's kind of lame to see stuff like this. Either way, BCM makes good rifles, and I'll continue to purchase their products (and obsess over dumb shit). I guess i'm one of them safe queen types

ps: joined a knitting club, chess club, and bought lots of frog lube to make my guns smell like mints. My girly nose can't handle the manly smell of oil
10/26/2012 5:09:10 PM EDT
[#11]
I'm amazed people even find these marks. Do you go hunting for any imperfections? I've never scrutinized a rifle like this. Just shoot the thing.
10/27/2012 10:53:03 AM EDT
[#12]
Quoted:


In all honesty though, when you pay top dollar for a rifle, it's kind of lame to see stuff like this.

Either way, BCM makes good rifles, and I'll continue to purchase their products (and obsess over dumb shit).

I guess i'm one of them safe queen types




No, by no stretch of the imagination did you pay top dollar for a BCM.  

No, by no stretch is BCM lame with this.

How many rounds have you fired through it, and how does it shoot?
10/27/2012 1:57:53 PM EDT
[#13]
1k+ = not cheap in my books

Never said BCM was lame, I said the complete opposite. BCM sells blems, and unblem'd lowers. This means that they make a adamant effort to separate "dinged up" lowers from the un-blemished ones.

Upcoming on 1k rounds, which is not a lot, but yes, the damn thing shoots.
10/27/2012 2:05:07 PM EDT
[#14]
Quoted:
1k+ = not cheap in my books

Never said BCM was lame, I said the complete opposite. BCM sells blems, and unblem'd lowers. This means that they make a adamant effort to separate "dinged up" lowers from the un-blemished ones.

Upcoming on 1k rounds, which is not a lot, but yes, the damn thing shoots.


You didn't say "not cheap", you said, "top dollar".  BCM is the best value on the market right now. I bought a BCM M4 Mod 0 for less than $1K. That's only a few dollars more than a Bushamster, Rock River, or S&W.
10/27/2012 3:29:01 PM EDT
[#15]
Quoted:
Quoted:
1k+ = not cheap in my books

Never said BCM was lame, I said the complete opposite. BCM sells blems, and unblem'd lowers. This means that they make a adamant effort to separate "dinged up" lowers from the un-blemished ones.

Upcoming on 1k rounds, which is not a lot, but yes, the damn thing shoots.


You didn't say "not cheap", you said, "top dollar".  BCM is the best value on the market right now. I bought a BCM M4 Mod 0 for less than $1K. That's only a few dollars more than a Bushamster, Rock River, or S&W.


exactly. Your top dollar is not top dollar.
10/27/2012 3:51:47 PM EDT
[#16]
I guess it'd be appropriate to rephrase what I said then.

When you pay full price for a rifle, not marked as a "blem", its kind of lame to see stuff like this.
10/29/2012 10:14:44 AM EDT
[#17]
OP, I think you need to read the fine print.