The Firing Line Forums

Go Back   The Firing Line Forums > The Skunkworks > The Smithy

Thread Tools Search this Thread
Old January 9, 2019, 12:07 PM   #1
Junior Member
Join Date: January 8, 2019
Posts: 3
AR-10 barrel/ brake ?

I have what I believe to be an older Armalite AR-10. I say that because the muzzle brake has 4 set screws on it (I took them off), which makes me believe the brake is not pinned? And having 4 set screws to remove anything from a barrel end now days, makes me say - it is pre-ban. But really don't know.
In any event, I am not sure how to proceed because it does not just fall off. I have read about pinned brakes here and I would need to 1) find the pin 2) grind down to flat and then unscrew the brake - if it is pinned. But again, is mine pinned and has 4 set screws?

The whole purpose of this is to put on a threaded different break with external threads. At this point, I am not sure if I have threads.

I want to know how to proceed before I just start clamping down and twisting the brake (clockwise) to try to remove it.

if I don't have threads, then I would be looking at buying an approx. same length barrel, but lighter. Dame this thing is heavy!
jjciii is offline  
Old January 10, 2019, 09:30 PM   #2
Junior member
Join Date: February 2, 2010
Posts: 6,846
I have an older "post-ban" AR that has this combination.
My guess is there's a cut just behind the muzzle that the set screws tighten into. After removing the set screws, a few light taps with a non-marring hammer should pop the brake off.
Mobuck is offline  
Old January 11, 2019, 01:09 PM   #3
4V50 Gary
Join Date: November 2, 1998
Location: Colorado
Posts: 20,644
Any pins visible? None? Then tap it forward with a rawhide mallet and if you don't have one, a piece of hardwood.
Vigilantibus et non dormientibus jura subveniunt. Molon Labe!
4V50 Gary is offline  
Old January 11, 2019, 03:02 PM   #4
Junior Member
Join Date: January 8, 2019
Posts: 3
thanks for the info. I will try the malette.
here is the photo
-well that did not work. photo to large and I don't see how to get it smaller. I will have to research this.
jjciii is offline  
Old January 11, 2019, 03:15 PM   #5
Junior Member
Join Date: January 8, 2019
Posts: 3
here is the photo
you can see two of the 4 set screw holes
Attached Images
File Type: jpg IMG_20190111_122946716.jpg (22.7 KB, 14 views)
jjciii is offline  

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -5. The time now is 03:07 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2018 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent:
Contact Us
Page generated in 0.04360 seconds with 11 queries