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9/19/2017 7:27:10 PM
Posted: 12/24/2005 9:17:23 AM EDT
Just used my new AR tools to disassemble a 20" Armalite with ban type pinned and welded muzzle brake. I was confused by the fact that there was only one spot weld visible. Someone here told me the pin was on the side and installed like a FSB pin. As I found out, that is basicly correct except the pin is in a blind hole.

I took the barrel off the rifle, knocked out the FSB pins, only to realize I couldn't slide it off the barrel with the brake in place. Put one pin partially back in and chucked the barrel extension in the lathe chuck. Supported the muzzle end with a live center and proceeded to machine away at the rear portion of the brake. After turning the brake down a ways, I was able to see both end of the pin. I kept machining the brake until I was sure I had all of the weld material gone, about .600" dia.. The pin came right out, but the brake would not come off. Didn't want to get brutal, so I continued turning the brake down. When I got to about .530". dia., the back end of the brake separated and I could see the barrel threads. The brake came free and I was able to unscrew it from the barrel. The threads look fine.

I took pics of the process. Email if you are working on one of these and need some help.
Link Posted: 12/24/2005 10:27:33 AM EDT

Link Posted: 12/24/2005 4:06:52 PM EDT
[Last Edit: 12/24/2005 4:11:46 PM EDT by SBR7_11]
Topic or 2 running already in regard to muzzle device removal.

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