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Posted: 8/13/2012 5:27:30 PM EDT
| When changing the muzzle device, should I put the receiver or barrel into the vise? I've seen people doing it both ways. Which way is correct? |
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Clamp the barrel if possible. Many have done it without doing so, but you asked for the correct way. It all depends on how tight it's on there. I don't know why some tighten them so tight, not need to be super tight. And some even use LocTite. If it doesn't break loose easy I use a few blocks of hardwood and tighten the barrel in a vise. |
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Quoted: I used an old GI magazine in the magwell of a fully assembled rifle. Braced against the ground all the torque force goes into the magazine. As long as you don't need to be superman to remove it, this'lll work. There's no way "all the torque force goes into the magazine", not possible for that to be true. A rotational force is placed on the barrel index pin, the upper receiver cut for the index pin, barrel extension as well as the take down pins. Damage as shown in the pic below can also happen from excessive rotational force. Don't take this wrong, what you did does work without hurting anything (I have done it the same way years ago), yours wasn't tight enough for that to occur as you stated. But if you have a real tight one that might also have had red Loctite used and you crank it real hard with a big wrench you can do some damage. Pic borrowed from another thread here. http://www.ar15.com/archive/topic.html?b=6&f=49&t=355495  |
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Quoted: Quoted: I've heard barrel in vise. But I did mine without a vise... How did you do that? Lay in on the floor or table or hold it upright between your knees and turn it with a wrench. If it's on real tight and doesn't move without excessive force find a way to clamp the barrel if possible and try again. It's not that hard to do. I only bothered explaining what can happen if it's on super tight and how to remove it without damage if it is. Most of the time they come off easy and it's not a big deal at all. |
you can make barrel blocks out of a 2x4. Cut a shallow V groove into a block of wood using a skill saw at a 45deg angle. It takes 2 passes. One from each direction to get the v groove. Cut across the grain. Across the grain is stronger. I wrap the barrel in cloth, then clamp away.
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Quoted:
you can make barrel blocks out of a 2x4. Cut a shallow V groove into a block of wood using a skill saw at a 45deg angle. It takes 2 passes. One from each direction to get the v groove. Cut across the grain. Across the grain is stronger. I wrap the barrel in cloth, then clamp away. http://i33.photobucket.com/albums/d68/50_BMG/Guns/IMG_1683.jpg Almost the same thing I use but I slide a piece of bicycle inner tube over the barrel when I clamp it in the blocks |
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Quoted:
you can make barrel blocks out of a 2x4. Cut a shallow V groove into a block of wood using a skill saw at a 45deg angle. It takes 2 passes. One from each direction to get the v groove. Cut across the grain. Across the grain is stronger. I wrap the barrel in cloth, then clamp away. http://i33.photobucket.com/albums/d68/50_BMG/Guns/IMG_1683.jpg Awesome! Thanks guys. |
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Quoted:
Quoted:
you can make barrel blocks out of a 2x4. Cut a shallow V groove into a block of wood using a skill saw at a 45deg angle. It takes 2 passes. One from each direction to get the v groove. Cut across the grain. Across the grain is stronger. I wrap the barrel in cloth, then clamp away. http://i33.photobucket.com/albums/d68/50_BMG/Guns/IMG_1683.jpg Awesome! Thanks guys. A fat chick with with powerful thigh muscles can clamp tight enough to offset 25+ ft lbs. in my experience. |
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Quoted:
Quoted:
Quoted:
you can make barrel blocks out of a 2x4. Cut a shallow V groove into a block of wood using a skill saw at a 45deg angle. It takes 2 passes. One from each direction to get the v groove. Cut across the grain. Across the grain is stronger. I wrap the barrel in cloth, then clamp away. http://i33.photobucket.com/albums/d68/50_BMG/Guns/IMG_1683.jpg Awesome! Thanks guys. A fat chick with with powerful thigh muscles can clamp tight enough to offset 25+ ft lbs. in my experience.  I believe you're right.
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I put my uppers in an upper receiver block to swap out muzzle devices.
Too much of a pain in the ass to take off Daniel Defense RIS rails to use a barrel block. I cant even use a barrel block on my 10.3" barrel, unless I take off the gas tube, but thats a big pain in the ass. My upper receiver block has never failed me yet. |
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