Upper & Lower play help! (Accuwedge didn't help)

[b.faust]

O-rings on the upper reciever lugs work too.

+1

I used to do this, till I realized a little bit of rattle didn't bother me all that much, nor did it have any effect on my shooting.
But if it bugs you, it bugs you.

It's your rifle, you paid for it. Do what makes you happy.

B.

[ojisan]

[novabrian]

Then you will be shimming your Glock I assume!

[Southpaw45]

Serious match AR15 target shooters will actually do a bedding job on there rifles with a special bedding compound for zero play. I have heard David Tubb does it. Only needed in extreame competition shooting where championships are on the line..