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Can somebody tell me the proper way to install a muzzlebrake. I got a John Masen muzzlebrake from Midway for my Mini 30 and tried to put it on. It came with no instructions. Just by looking at it I thought I'd first have to remove the pin from the front sight then simply slip on the muzzlebrake over it and replace the pin with the longer one. But it seems like it doesn't fit. I can't get it over the front sight. Is it supposed to be really tight. Do I have to take a rubber mallet to it to get on all the way. Or did they send me the wrong muzzlebrake. The small zip lock pouch it came in says Mini 30 muzzlebrake. Please help.

Thanks. Bill S.
 

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Make absolutely sure you have the right part.

Set up the workplace, procedure, tools, practice a few dry-runs.

Cool the barrel with the front sight in a bucket full of water and ice. If you have access to dry ice or liquid nitrogen, even better but try water ice first. :)

Heat the muzzle brake in boiling water on on fire.

As the barrel/sight contract and the brake expands, quickly try to assemble them.

Good luck.
If that does not work, you may have to do some grinding on the brake.

Voruzon.
 

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Bill,

I also have a Mini-30 and got a Masen BW Brake for it. Mine fit very tight - in fact, I didn't need the longer pin. I just banged it on with a 2x4.

In retrospect, and looking closely at how it ended up, I would have been better off taking my Dremel to it, and removing a little material where it was binding up: the split where it wraps around the sight. As it is, it would probably take a wheel puller to get mine off now.
 

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I mistakenly got the same, but for a mini14 - it was smaller and I had to send back for the right part. sounds like you have the right one though. they are a very tight fit, I too had to pound mine on with a piece of wood.. I hit it with a little wd-40 - the wonder stuff - first.
 

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The one I got for my Mini-14 slid right on with a tiny little bit of gap. It actually rings like a bell if you tap it right. One of these days I'll have to shim it to prevent that.
 

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I like Voruzon's idea, shrink the barrel, and boil the brake. First measure to make shure it isn't for a mini, and will fit your barrel. If you have to remove some material, I recommend a honeing action. Saw a wood dowel rod down its center about an inch or so, insert a folded strip of sand paper, chuck to a motor, and hone it. Problaby smoothing it some is enough. A little liquid, dish soap or hand soap will help slide it on. Grease may smoke, and smell when it gets hot? Maby not? I would recommend puting in the pin, as this is what holds your sight on. A good bump, may move the sight some.:( . Use a wood block between the hammer, and brake. A few taps should do it.
 
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