Tech Sight keeps shooting loose - known issue?

[Kaylee]

So when we first mounted my Tech Sights it was with loc-tite on all three screws on the front sight.
It was ages before I could get out to a range to test them, but finally did and.. everything seemed peachy once they were in.

Next trip I was suprised to see my offhand and rested groups weren't that different.. and not quite what I'd expect. 
On getting home, I saw the front sight was loose.

Then I crank all those screws down hard as I can before heading out tonight... and by the time I come home, the front sight is literally rattling on the sight base.

Not my best groups ever. :p

Before I take it apart, reloctite everything, and pray - is this a known issue one of y'all has dealt with?

Thanks!

-K

[oladcock]

I don't think I loc-tited mine at all...2 or 3 years, thousands of rounds and still tight as ever. If you used the blue the first time, redo it with the red......O.L.

[ItsanSKS]

Loctite Red.  Designed to withstand temperature *and* chemicals.  Loctite blue breaks down with heat cycles. 

[hawkeye]

Ruger uses the tool to cut the front sight dove tail until the tool is worn out causing some barrels to have a poor fit on the front sight. This is why some factory sights are harder to remove than others. Try the red lock tight on the base of the Tech sight .

[Wy Knott]

I've never had trouble with my front sight but I did end up epoxying on my rear sight after it came loose repeatedly. If red loc-tite doesn't work you might try that.

[PHenry]

Had same issue on mt LTRs. No time for such nonsense. Tapped out receiver for larger screws. Even tried loctite. Problem recurred.

JB Weld rules. Sure, it's permanent, but for an LTR who cares? Remove paint from both rifle receiver and underside of site base. Run JB into screw holes and all over contact area. Set and forget. I did it maybe three years ago - no more issues and my LTR have been through thousands, upon thousands of rounds.

You results may vary. The preceding not to be taken as actual advice. Poster assumes no responsibility for any problems resulting from use of method described. Informational purposes only. Don't try this at home. Rifles depicted driven by professional drivers on closed circuit course. 

[AFTERMATH]

The old one screw FS were notorious for this.
Mine fell off right before I could score RM my second shoot. 
Locktite on the screw just wasn't enough.

I completely degreased it, filled the base and set screw hole completely - reinstalled the sight wiped off all the extra.  Problem solved.  That was with blue locktite.  Red is semi-permanent, so that'll work better. 

But locktite doesn't fill spaces, it will only work where you have metal to metal contact, so if it looks like that's not the case you'll have to try one of the other methods below.

I wouldn't necessarily want to make it permanent, just in case it breaks.  Or something better comes along...

Remember, to keep any locktite, etc. out of the area of the front post/detent.  No use installing adjustable sights that can't be adjusted.

[stoneknives]

Make sure to degrease the screws and threads with your favorite degreaser and a Q tip. Lots of greasy gunk in the threads usually and that will cause your screws to work loose. Then use thread locking compound, blue has worked well for me so far.

[wingwrench]

  The Marlin 795 LTR with Tech Sights got it's first workout this weekend. The youngest girl nicknamed Helen.... Helen Wheels in her youth was using it. She has since grown up.

  ANYWAY.... I used carb cleaner & compressed air three go rounds to thoroughly clean and dry threaded holes and contact surfaces. Blue loctite for the front sight mounting screw and rear sight clamping arrangement threads. I also used a little dab of (green) RC 680 in the clamp claw side of the rear dovetail groove of the mount arrangement. (As a mechanic, I have access to a lot of loctite products....)

  So far so good; may it ever be so. I am also using a little dab of moly disulphide paste applied with a toothpick point (as is used on Cat head bolts) on the sliding surfaces in the bolt / receiver area. We will see how that all works out in the long run........

[Kaylee]

Thank you all!

Red Loctite seems to have done the job - two range trips since, and it's still rock solid and hollowing out black squares.

Thanks!

[jimmythegeek]

My rear sight keeps working loose on my Marlin 795.  They are sort of notoriously hard to keep a scope mounted.  I don't know why one .22LR shooter would be worse than another, but it seems to be so. 

I'm thinking of dropping the sights for another sight with more convenient adjustments.  I know they are trying to keep it in a small package for small rifles, but it's too much of a hassle.  I want to adjust my adjustable sights.  I see these as more set-it-and-forget-it. 

[Twineagles]

They make a gel version of locktite and it does a much better job of sticking to small threaded screws. My Ruger LTR has been through a few thousand rounds since installing the tech sites and sites are fine.

[AFTERMATH]

The old one screw FS were notorious for this.
Mine fell off right before I could score RM my second shoot. 
Locktite on the screw just wasn't enough.

I completely degreased it, filled the base and set screw hole completely - reinstalled the sight wiped off all the extra.  Problem solved.  That was with blue locktite.  Red is semi-permanent, so that'll work better. 

But locktite doesn't fill spaces, it will only work where you have metal to metal contact, so if it looks like that's not the case you'll have to try one of the other methods below.

I wouldn't necessarily want to make it permanent, just in case it breaks.  Or something better comes along...

Remember, to keep any locktite, etc. out of the area of the front post/detent.  No use installing adjustable sights that can't be adjusted.

5,000 rds later - problem no longer solved.   Caught it before it fell off this time though.   Easy fix.

[wingwrench]

The front sight has held fast so far. The two screws holding the barrel to the stock -and- the rear sight clamping arrangement have had issues with staying tight. Providing I am able to discipline myself to check them regularly, and keep ahead of loosening, we ought to have a working solution reached........

Continued from post above; progress update

[slim]

I duct taped mine. Made a nice hood over the sight as well.


.... and then I used some Loctite.

[arpjoe]

Tech front sight came loose on my Ruger 10/22.  The screw did not have anything to hold it in place except pressure on flat metal.  Carefully centered the front sight and with a drill smaller than the screw hole carefully drilled a small divot into the flat metal.  Reinstalled the front sight screw with blue Loctite and it has been solid ever since.