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Posted: 10/24/2015 11:06:41 AM EDT

Do you guys put blue loctite on your back up sights? Just got a set of MBUS and was wondering if I needed to buy some loctite

Posted: 10/24/2015 11:10:09 AM EDT

[#1]

I do.

Posted: 10/24/2015 11:18:11 AM EDT

[#2]

Yup

Posted: 10/24/2015 11:19:07 AM EDT

[#3]

Nope. If torqued properly, around 30 inch pounds, it's not needed.

Posted: 10/24/2015 11:20:45 AM EDT

[#4]

Don't need it if you only intend to shoot less than about 10 rounds though.

After that, mine get loose without blue loctite.

Posted: 10/24/2015 8:57:08 PM EDT

[#5]

Quote History

Quoted:
Don't need it if you only intend to shoot less than about 10 rounds though.

After that, mine get loose without blue loctite.

View Quote

I use "Small Thread" pink Loctite instead of blue on anything smaller than 1/4 inch.

Posted: 10/24/2015 9:03:39 PM EDT

[#6]

Yessir.

Posted: 10/24/2015 9:07:16 PM EDT

[#7]

on the Magpul back up sight I do. You can have that nut fall out and never find that little sob again. I use the blue .

gd

Posted: 10/24/2015 9:08:33 PM EDT

[#8]

Yes, especially the front one which gets hammered and heated up pretty bad.

Posted: 10/24/2015 9:08:56 PM EDT

[#9]

I used Vibra-Tite

Posted: 10/24/2015 9:27:27 PM EDT

[#10]

Quote History

Quoted:
Nope. If torqued properly, around 30 inch pounds, it's not needed.

View Quote

Probably so, but I'm lazy and live better through blue thread locker chemistry. And I don't assume every BUIS on the market has the same tq specs.

My precision stuff is torqued, fwiw.

Posted: 10/24/2015 9:30:08 PM EDT

[#11]

I do, and learned why again today. Got a new AR556, the ruger version of the BUIS was already installed, came lose after two mags. I was wondering why the hell my groups were that bad

. I will pick up a tube of loctite this week.

Posted: 10/24/2015 9:31:20 PM EDT

[#12]

A tiny bit, just for my peace of mind really.

Posted Via AR15.Com Mobile

Posted: 10/24/2015 9:32:01 PM EDT

[#13]

Anything you bolt to your gun that doesn't come off when you field strip it gets loctite.

Posted: 10/24/2015 9:34:52 PM EDT

[#14]

Nope. Has never came loose in last 1500 rounds.

Posted: 10/24/2015 9:43:30 PM EDT

[#15]

My buis have loctite and movement indicator dots.

Posted Via AR15.Com Mobile

Posted: 10/24/2015 9:49:07 PM EDT

[#16]

Just some pink on one particular MI ERS that the roll pin wanted to creep out.

I emailed them asking to buy a new roll pin and they sent me a new ERS at no charge and declined to have me send them back the one with the issue.

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[ARCHIVED THREAD] - Threadlocker on BUS?

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