Changing muzzle device without upper vise block, any risk of damage?

[n8vmind]

I am swapping up a flash hider for a muzzle brake. Watching instruction on YouTube, it looks straight forward. But I only have a lower mag style vise block and no upper vise block. It is necessary to buy one? I was planning to lay the separated upper on it's sides again my work bench and twist it off and swap in muzzle brake

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[26 Inf]

Maybe you could make some barrel blocks to secure your barrel?

https://modernrifleman.net/2015/03/0...e-device-work/

[TomMcC]

I am swapping up a flash hider for a muzzle brake. Watching instruction on YouTube, it looks straight forward. But I only have a lower mag style vise block and no upper vise block. It is necessary to buy one? I was planning to lay the separated upper on it's sides again my work bench and twist it off and swap in muzzle brake

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If it's almost brand new you might get away with that technique, but if it's got some mileage on it (meaning any substantial carbon build-up) you should stabilize the upper or the barrel. It can be sometimes difficult to break free.

[n8vmind]

If it's almost brand new you might get away with that technique, but if it's got some mileage on it (meaning any substantial carbon build-up) you should stabilize the upper or the barrel. It can be sometimes difficult to break free.

So something like this will work?

https://www.primaryarms.com/guntec-u...ver-vise-block

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[TomMcC]

*

So something like this will work?

https://www.primaryarms.com/guntec-u...ver-vise-block

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Yeah that will work. Or if you've got a 2 X 4 laying around you could try the clamps that 26 Inf linked to. I've actually used DIY clamps like that. As long as the carbon build-up isn't too bad they can work saving you some bucks. If they don't work then you can get the clam shells.

[MistWolf]

I am swapping up a flash hider for a muzzle brake. Watching instruction on YouTube, it looks straight forward. But I only have a lower mag style vise block and no upper vise block. It is necessary to buy one? I was planning to lay the separated upper on it's sides again my work bench and twist it off and swap in muzzle brake

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Does your AR have a front sight block? If so, pad your vise jaws and clamp the front sight base in the vise.

[n8vmind]

After some reading online, I think I will invest in a Magpul Bevblock..will probably need it in the future to work on the rifle.

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[GH41]

After some reading online, I think I will invest in a Magpul Bevblock..will probably need it in the future to work on the rifle.

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The proper way to remove/install a muzzle device is by holding the barrel as close to the MD as possible. The BevBloc/Reaction rod type tools are best used for removing/installing barrel nuts.

[omegajb]

After some reading online, I think I will invest in a Magpul Bevblock..will probably need it in the future to work on the rifle.

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I couldn't get my device off without using a vice block but it was a couple of years old and carbon locked it on good so it's a decent investment.

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[Five_Point_Five_Six]

If I were only going to use it once or twice I could see going with the Bev Block to save a few bucks, but for more frequent use you'd be better served by the Geissele Reaction Rod. The Bev Block is kind of a rickety POS.