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3/1/2013 1:34:02 PM EDT
I completed my first AR.   It is a Rock River Arms lower receiver with a Palmetto State Armory LPK.    The Upper is a PK Custom Upper with an 18 FN HBAR barrel and a YHM 5009-TJ hand guard.

http://yhm.net/images/YHM-5009-TJ.jpg

My issues are that I have very slight side to side movement when I twist the upper and lower.   Reading up on this, everything indicates this will not impact performance, though it does bother me.   Would an accuwedge or epoxy help this?

I would like to add a sling mount to front, but would like to leave the lower rail open for a bipod.   Ideally I would like a QD release sling mount.   Anyone know of a system for a two point sling that would mount in one of the hand rail holes?

Thanks!

3/1/2013 1:44:26 PM EDT
[#1]
The fit between the upper and lower can vary from very tight to sloppy loose . It doesn't effect performace. I usually do my builds and if there is any play i drop in a Accuwedge.
Your rail already has a sling mount in that front "Hole". Pick a single or two point sling with the quick attach and it will lock right into that hole.

http://www.bravocompanyusa.com/Magpul-MS3-Single-QD-Multi-Mission-Sling-BLACK-p/mag506-black.htm
3/3/2013 1:27:06 PM EDT
[#2]
I took the AR to the range.   It shot great.   I did buy a 40 rounds of Tulammo because it was cheap and only thing in stock.   I had 1 double feed and 7 duds out of 40.   The Black Hills and Fiocchi ammo fed perfectly with no issues.    I put about 150 rounds through it this morning.

I was a very happy camper.
3/3/2013 2:52:28 PM EDT
[#3]
If you let those steel cased rounds sit in a hot chamber for a few minutes it'll "glue" it self in and wont extract easily. Otherwise steel cased is a great cheap option to plink with.

I've never had any issues with tullammo other than a casing getting stuck after leaving it in a hot chamber for a few minutes.
3/4/2013 3:43:26 PM EDT
[#4]
Quoted:
If you let those steel cased rounds sit in a hot chamber for a few minutes it'll "glue" it self in and wont extract easily. Otherwise steel cased is a great cheap option to plink with.

I've never had any issues with tullammo other than a casing getting stuck after leaving it in a hot chamber for a few minutes.


Ya, I agree I am not saying steel is a poor casing.   I think that has been beaten to death, with no definitive answer.  It was around 20 F out side and I was having failure to fire (soft strike) in the first 10 rounds while I was trying to zero the rifle.  The soft strike shells I tried to run through my friends Remington 700 and he could not even close the bolt on several.    Maybe I got a bad batch.   But I won't try Tulammo again.    I heard good things about Wolf Performance Ammo (steel aswell), so I find some cheap I'll try that.

I am also trying Froglube as my lubricant.    I had a hi-point JCP pistol that ran rough.   I cleaned it and froglubed it.   It runs smooth now with no issues.   I also tried it on my Taurus PT840 pistol and had no issues of any sort.   So I am going to try it on my AR.
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