AR buttstock timing

[Caster]

Anyone ever had issues with misaligned buttstocks?

 

I just finished an 80% lower and as I was assembling the carbine style tube a stock, I notice they are about 15 degrees off.  Everything is assembled right but it's off a tad, like the key way and/or the key in the endplate are out of place.  It would be an easy fix with a file, just make some wiggle room, then red lock tite and stake the crap out of the castle nut.  It'll never move.  

Just curious if anyone ever ran into that before?  Assembled better than a dozen AR's and never seen this before.  

[rugerla1]

Can't say that I've ran into it. Out of spec buffer tube possibly? 

[Caster]

Yeah, I just pulled it apart and the keyway in the buffer tube is off center.  It's a new on me but if you machine enough parts in high volume, you'll mess one or two of them up.  It's inevitable.  

[rugerla1]

28 minutes ago, Caster said:

Yeah, I just pulled it apart and the keyway in the buffer tube is off center.  It's a new on me but if you machine enough parts in high volume, you'll mess one or two of them up.  It's inevitable.  

I have used quite a few different brands, but for the past year have used ALG True Milspec and BCM assemblies with nothing but perfect fit and finish. A little more money but worth the worry free process.