I’m have a loosely matched upper and lower receiver combo. Upper is spikes in believe and the lower is on target tactical (stamped) yall have any suggestions for tightening these up? I’m thinking about getting a wedge to try bit what are some other methods?
Accu wedge i guess or swap over to a Gen 2 Aero lower. They’re only $60 right now and have an adjustment for that.
How much slop is there?? It’s okay to have some, unless it just really bugs you.
For those technically savvy & with a drill press: drilling & tapping a hole from the shelf down to the grip & threading a nylon screw allows one to snug things. The hole needs to be placed to avoid the grip screw, of course.
But an Accu-Wedge is simplist.
A little loose is good and it won’t have an effect on accuracy.
If it really bothers you, buy a 99 cent pair of EAR brand ear plugs and place one of them in the lower receiver below the rear take down pin. Save the other ear plug for the day when the first ear plug is not doing the job.
Demon Tactical makes a rear take down pin which will tighten it up as well.
I love mine super easy removal
Sent from my XT1254 using Tapatalk
You are wasting your time. Leave it alone and shoot the weapon. It has ZERO impact on accuracy. Unless it is beyond the spec and is causing a function problem worry about something else.
It’s not the accuracy that I’m worried about. It’s a 10" sbr that I use for under 75 yards. I’m more annoyed with the slack
Sent from my SAMSUNG-SM-N910A using Tapatalk
Use the anti-rattle device designed for it by Eugene Stoner
This. When you have a mag in there it tightens up a lot.
Haha! Y’all beat me to it! I’ve never had accuracy issues with any of my rifle from rattle. Just the nut loose on the trigger. 
I just read the title.
http://www.mayoclinic.org/healthy-lifestyle/womens-health/in-depth/kegel-exercises/art-20045283
ETA: Sorry. This was a serious thread.
I am in the “put a mag in it” camp.
The mantra around here has always been “it has ZERO impact on shootability…just shoot the gun and ignore the rattling”. I agree that it has no impact on accuracy, but like most people, I equate a loose, rattling firearm with poor quality. If the OP feels the same and finds the loose rattling to be annoying, then take any of the steps suggested here to tighten it up and make yourself feel better about the gun. Why not? What’s the big deal?
Different people have different attitudes about the appearance, cosmetics, and functionality about their tools.
That sums it up
Sent from my SAMSUNG-SM-N910A using Tapatalk
Regardless of anyone’s feelings on loose receiver fit… there are various kits offered for “tightening” up the loose fit.
For the OP… you will hear all sorts of comments about loose fit not being a problem… while it may or not be “bad” … it really doesn’t matter.
If it bothers you, then fix it. I have heard the same comments about recoil reduction for a 5.56 AR… I am 6’ 1" 265lbs and have never understood why you WOULDN"T what recoil reduction ?! If the quite mild shooting 5.56 can be made to recoil like a .22 Magnum why wouldn’t you ?
Anyway … it is your rifle, do as you see fit. I have no idea if the linked products work well or even last very long… but those are some of the products available…
I will add… do not tighten the crap out of the fit. I am not a big of adjustable tension type replacement pins as I feel those will place un-needed stress on parts that are designed to be somewhat loose. Not everything should be tighter than crap.
I have long been vexed by people who want “tight” ARs. It is odd.
Like 1911s. I would rather have something slightly rattly than something overtight.
I mean…hasty sling position or a bipod will do more for you than an AR you have to use a hammer and punch just to take down.
People are weird.
There are many “if it ain’t broke don’t fix it” things you CAN fix on your rifle to make it better for YOU. This is one of those things that can get you into trouble, even into dangerous trouble. Smarter people than me on this forum helped me to see the light. A certain amount of rattle usually has no effect whatsoever on accuracy. An Accu-Wedge has nothing to do with accuracy and can actually cause you a no-go situation if that take down pin eggs out the holes. My Accu-Wedge went into the garbage a long time ago. Use a magazine to make things quieter until the trigger gets pulled.
Certainly there’s a happy medium, isn’t there? I have three Noveske receivers with matched uppers. They don’t rattle a bit and the pin comes out with just finger pressure. I like that. If feels like a quality firearm, even if its functionality isn’t any better than a rattly old BCM-component rifle. If I can choose between a sloppy-fit vs a precision-fit rifle, I’ll choose the latter.
But that’s me. YYMV, and more power to you.
.
In my case it is not the looseness or rattle per say that bothers me when it is sitting on the table or shaken in my hands.
What I do not like is when I grip and shoulder the rifle, depending on the amount of grip and pressure from shot to shot, the sights come out of alignment from left to right and have to either shift my head or grip tighter to get everything to line up.
I like old school, no optics for me.
I shoot with an “F” marked front sight and removable rear sight bridge(carry handle to some).
With the Accuwedge installed I do not get the movement in my sights so my head position stays the same on the stock as it should be.
The wedge will not make the rifle any more accurate but helps me shoot it more accurately with a consistent sight picture.
Granted, if I really gorilla grip it then I can make the sights move, but not using my natural firmest grip on the rifle while firing.
Install and removal of the rear takedown pin is easily done with fingers from one hand by just squeezing the two halves together a tad bit using the other hand.
Do not see how you can wear or oblong holes in the receiver unless over time you are not squeezing the halves together when manipulating the rear take down pin.
The only reason I use one is it solves my issues with sight alignment while firing.
YMMV
Loose fit in ARs is not a problem for me, but this is a really good idea for those guys I know who hate loose fit.
-S.