Is there anyone sleeving AR uppers?
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Is there anyone sleeving AR uppers?
If your talking about what I think you are my answer is NO because it is a waste of time or NO because I wouldn't miss match a receiver set. This guess the question game is fun.
OP - please be more specific/explanatory in your question.
What is "sleeving"?
Sleeving, for an AR, would be boring out the upper to fit a (for example) stainless steel sleeve that would contain the BCG, as well as provide a stiffer and stronger barrel attachment.
Sorry. I thought sleeving would be self explanatory.
I have a billet upper I'm getting ready to sleeve and didnt see anyone else doing so on the 'net so I thought I'd ask here.
GH41 - generally, for precision rifles. More rigidity is considered a good thing. Not sure what you were thinking about with the mismatching bit.
This would allow a precisely fit bbl, extension, and nut that would support heavier varmint barrels more effectively.
i actually thought you were referring to the sleeving of barrels to 'renew' worn out rifling in fixed barrels on old guns. but since the AR barrel is easily replaced, that didn't make sense.
since what you're suggesting with an AR isn't common practice, it wasn't obvious (to me).
question - why sleeve vs. making the upper out of steel? i'm assuming weight isn't a concern here, and i'd probably want the receiver to be made of a single material since the optic and barrel will be mounted to it. i wouldn't want a steel-aluminum interface in-between the optic and barrel as i'm not sure what the differences in thermal expansion might do (just my gut feel).
Agreed on the single material upper. And unless I was running a very long and heavy profiled barrel, I wouldn't bother with either. A MUR upper should provide plenty of extra rigidity...
A forged upper is generally stiffer than a billet. A forged MUR upper is stiffer still. In one sub-forum, there is a sticky about upper receiver flex.
An upper sleeved with a stainless steel tube would be much lighter than an all steel upper. If the upper is machined so the sleeve is an interference fit, there won't be any problems with it coming loose due to thermal expansion and the OD of the tube will grow larger and the ID of the upper will shrink with heat
Looking at a specific benchrest game that doesnt allow steel uppers or lowers.
Thanks for the responses.
I did a special run of uppers for Saddam with titanium. Apparently they weren't game changers.