Has anyone really done a test to see the difference?
-
If you are being asked to change your password, and unsure how to do it, follow these instructions. Click here
AR-15 slop fix
- Thread starter 6pakzak
- Start date
Help Support Long Range Hunting Forum
Accue-wedge
I have used few methods to take out the slop of an AR15. Lots of debate about the effect of the slop on accuracy, I used my AR's for 200-300 yard Egg Shoot Competition and treat bedding quality no different then the bedding quality of my precision bolt rifles. I think it matters for high precision shooting. You have to first figure out where the slop is coming from…ie. loose pins or too much clearance in the rear receiver lug. Most all of the time for me it has been due to the rear receiver play/clearance. With AR15 Mil-spec rear lug fitment, the most effective solution for me has been to use the horseshoe shaped alloy Accu-Shims(below). They have kept a couple of my competition AR's absolutely free of play for more 10-15 years of heavy use.keep the pin well lubed! The common plastic AccuWedge types can work OK until the rubber fatigues. I used them before I went to the Accu Shim. To solve this, I drilled a hole(about 1/8"-3/16") in the center of the bottom disc portion and fitted a cut to length, stiff trigger spring, slightly larger then the drilled hole that is fitted in the hole to apply support tension. Getting the length of the spring right is important.
A couple of shooters I know have epoxy bedded the rear lug using the same method used to bed a bolt rifle tang area…and have had good success. Others have make their own Accu-Shim type shims from metal or plastic sheet stock. Lots for ways to skin this cat if you feel you need to.
A couple of shooters I know have epoxy bedded the rear lug using the same method used to bed a bolt rifle tang area…and have had good success. Others have make their own Accu-Shim type shims from metal or plastic sheet stock. Lots for ways to skin this cat if you feel you need to.
Last edited:
I use an Accue-wedge in my AR but have noticed no difference in accuracy on it. Shoots minute of prairie dog with or without. I just feel better shooting something that does not rattle like my Army issued M16 used to do.
Good read by a military armorer when he supported the shooting tesm.
Maximizing The AR-15: A former military armorer reveals his secrets for cutting AR-15 group sizes in half. - Free Online Library
Free Online Library: Maximizing The AR-15: A former military armorer reveals his secrets for cutting AR-15 group sizes in half.(TECH TOPICS) by "American Gunsmith"; Sports, sporting goods and toys industry Sport, sporting goods and toys industry
www.thefreelibrary.com
Last edited:
Not an official test but when ai first began using my AR's for Egg Shoots at 200/300 yards I observed occasional fliers that were difficult to explain. I noticed an improvement in group size and a reduction in fliers when I tightened up my receiver with no other changes in load, etc. And, my scores improved. I have seen similar improvement with my hunter AR's was well. I competed well against the bolt rifles, with the advantage of capturing a wind condition with the higher rate of fire.
A couple of targets from my Egg Shooters, 223(right) and 6mmAR(left)
Ok... that is beyond a good read.
That is a great read!
Thanks for posting that!
Having just read the article.
I was doing several of the items he mentioned, for the last 6-8 years or so.
(this all relates to the AR-10/LR308's, I've built)
-Use a heavier upper (especially with a WSMs)
-Shim or Accu-Wedge the upper/lower union. The Aero set screw is great also!
-Loc-Tite 620 on the barrel extension, when that gets torqued
-Good triggers.
But the stuff on the bolt carriers, is definately new to me.
Any religious cleaning is new too
Thanks again for posting that!
gvjm
Well-Known Member
I'm using the rubber thingy too. It works great and it has no effect on accuracy.
He was doing the carrier mod his way when I was doing mine, my way. Here is a picture of my version.
SS sleeve over the carrier. To accommodate the sleeve, had to bore the buffer tube. The weight is a substitute for the Tubb carrier weight. Just a brass turned down for press fit and press it in with a hydraulic press.
Lasiter
Well-Known Member
I have built 5 ARs. Two of them have the plastic tip set screw, Aero & Spartan. If I did another I would use the Aero receiver again. It's so nice in many ways.
I'm suprised lapping the barrel receiver extension wasn't included.
Lapping ghe buffer tube for smooth operation?
How much weight is added to the carrier body with this?
Last edited:
Lasiter
Well-Known Member
I waited months for Brownell's recommended lapping compound to go with their lapping kit. The quality Aero Precision receiver and Faxon .223 wylde pencil barrel I used fit so well there was nothing to lap.
