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7/3/2013 8:58:56 AM EDT
So I read somewhere that the M17s muzzle tension was extremely important. Well a while ago, before selling it to my buddy, I had one, it had an after market muzzle brake on it. I tried very hard to get it off, I turned it with pliers as hard as I could but it didn't seem to budge. I am thinking there is loctite on it? anyway, i am afraid i may have messed something up after reading about the barrel tension being so important. the muzzle is still on very tight, or so it seems. it cannot be loosened by hand. Am i worrying for nothing? I just hope I didn't sell him a damaged rifle? any input?
7/3/2013 9:15:58 AM EDT
[#1]
The go to people for anything M17 I think is K&M Aerospace. Might email them and see if they can tell you.
7/3/2013 9:37:00 AM EDT
[#2]
http://www.kmaerospace.com
7/3/2013 9:51:32 AM EDT
[#3]
If by "very important" you mean "makes it accurate" then yes, I suppose it is very important.  If by "very important" you mean "the gun won't work without it" then no, it's not very important.

The problem with torquing on a flash hider is that the barrel assembly is only held in the receiver by one bolt and the tension, and it is very easy to damage the mount point, especially on first gen receivers.  Mess up the rear mount point and accuracy goes to shit and reliability might go south as well.  

If you want to get the FH off, you should undo the allen bolt that holds the barrel assembly in place, pull the whole thing out the front of the gun, and put the barrel into a vice.  If it's under a lot of tension, this method might screw up some of the threads, so you might have to re-cut/re-thread them.
7/3/2013 5:48:22 PM EDT
[#4]
You may also want to contact Erik Winter at Windham Weaponry. I know he and a few others at the factory have worked on the Bullpups while employed with BFI.
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