epoxy bed 22 upper?

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epoxy bed 22 upper?

Post by Merick on 7/8/2017, 11:44 am

My advantage arms target upper will shoot itself loose despite my attention, judicious torque and blue locktite. 

Am I off my rocker to think about putting some acraglass jel in behind the slide stop and in front of the feed ramp? 

In theory this would eat some of the forces that usually ride on the take-down/guide-rod screw and eventually shake things loose.   I'll have to look and see if this would make a mechanical lock.  Has anyone else done this?

Merick

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Re: epoxy bed 22 upper?

Post by dronning on 7/8/2017, 12:04 pm

When a bolt gets over tightened the threads are deformed ever so slightly and it looses it ability to hold tight.  Try a new guide rod, hopefully the internal threads aren't damaged on link area of the barrel.
- Dave
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Re: epoxy bed 22 upper?

Post by james r chapman on 7/8/2017, 12:50 pm

You mean the long end is not where you put the breaker bar???
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Re: epoxy bed 22 upper?

Post by Merick on 7/8/2017, 1:42 pm

james r chapman wrote:You mean the long end is not where you put the breaker bar???

Breaker bar has to be the long end or else there isn't room for the cheater bar.

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Re: epoxy bed 22 upper?

Post by Jack H on 7/8/2017, 1:47 pm

I have had no problems when I shape the rod end slightly and evenly convex, and taper the threads away from any mushing.
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Re: epoxy bed 22 upper?

Post by Chris Miceli on 7/8/2017, 1:54 pm

new slide stop pin and guide rod ?
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Re: epoxy bed 22 upper?

Post by Merick on 7/8/2017, 3:10 pm

Chris Miceli wrote:new slide stop pin and guide rod ?
It came with a new slide stop pin and guide rod, Im not buying replacements every 1000 rounds.

I think the stop pin is hardened, anyhow there isn't a mark on it, and a new one isn't going to fit any different.

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Re: epoxy bed 22 upper?

Post by Chris Miceli on 7/8/2017, 6:02 pm

Merick wrote:
Chris Miceli wrote:new slide stop pin and guide rod ?
It came with a new slide stop pin and guide rod, Im not buying replacements every 1000 rounds.

I think the stop pin is hardened, anyhow there isn't a mark on it, and a new one isn't going to fit any different.

you are doing something wrong or your stuff is jacked.  i would start with a new guide rod if you got no marks on your slidestop pin. worst case that barrel block is toast.
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