Warning

 

Close

Confirm Action

Are you sure you wish to do this?

Confirm Cancel
Member Login
Site Notices
9/22/2017 12:11:25 AM
Posted: 9/18/2005 5:01:43 PM EDT
I purchased a LMT BUIS several months ago and just got around to mounting it on a Stag upper. It fits great but I don't like the big attachment knob on the side of the sight.

Is there a way to remove the knob and still use the sight?
Link Posted: 9/18/2005 5:13:22 PM EDT
Some have removed the knob, chopped the bolt, and used a hex nut.
Link Posted: 9/18/2005 5:29:56 PM EDT

Originally Posted By Bradd_D:
Some have removed the knob, chopped the bolt, and used a hex nut.



I did this with my CCH BUIS.





Link Posted: 9/18/2005 6:17:24 PM EDT
Link Posted: 9/18/2005 6:22:22 PM EDT
I’ve posted this quite a few times, once was in the thread about DIY modifications. No one ever paid much attention, I like how it streamlines the BUIS and removes some unwanted weight.
Link Posted: 9/18/2005 6:25:44 PM EDT
Interesting idea...
Link Posted: 9/18/2005 8:02:56 PM EDT
Anyone know if there is a way to disassemble the knob from the sight without cutting?
Link Posted: 9/19/2005 2:20:57 AM EDT

Originally Posted By CavalryJim:
Anyone know if there is a way to disassemble the knob from the sight without cutting?



Remove the original bolt and thumb nut and replace it with a Button head screw and nut. If you wish to return the sight to original reverse the process.
Link Posted: 9/19/2005 4:30:36 AM EDT

Originally Posted By QUIB:

Remove the original bolt and thumb nut and replace it with a Button head screw and nut. If you wish to return the sight to original reverse the process.



When loosening the knob it seems to have something stopping it. For removal, do I just keep turning it to the left?
Link Posted: 9/19/2005 4:43:11 AM EDT
Link Posted: 9/19/2005 8:36:12 AM EDT
My setup is virtually the same as Quib's.
Link Posted: 9/19/2005 9:48:47 AM EDT
[Last Edit: 9/19/2005 10:15:30 AM EDT by Zardoz]

Originally Posted By CavalryJim:

Originally Posted By QUIB:

Remove the original bolt and thumb nut and replace it with a Button head screw and nut. If you wish to return the sight to original reverse the process.



When loosening the knob it seems to have something stopping it. For removal, do I just keep turning it to the left?

I just grabbed the sight, and twisted the locknut right off (I used pliers on the nut itself--forgot to add); it takes some force, but not a whole lot, and the threads weren't damaged at all. Once the locknut's off, install the sight with the replacement nut. I think it's an M5 (can't remember, exactly), but you can always take the sight into the store with you to make sure you get one that fits. Once the sight is installed, you just cut off the excess threads on the mounting bolt, and reblue. If you can, get a blued nut for the replacement. If you can't find blued nuts, you can carefully grind off the plating to blue it.
I think Quib and myself had the same idea at about the same time, because when I originally posted about mine, he had just gotten through doing his, also.

Link Posted: 9/19/2005 10:11:39 AM EDT
tag... 'cause I keep forgetting to do mine.
Top Top