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Posted: 6/30/2013 11:49:20 AM EDT
I didn't like the way this tool puts all the force on the studs for the pins when installing or removing a barrel. I made this simple 1" bar that slides snugly into the upper & is pulled down tight by two 3/8 bolts. This tightens the flat bottom of the upper against the aluminum bar. You still use the pin but this takes most of the load off of them.
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| If they couldn't take the force, the tool would not have been designed the way it was. It seems to me your tool could cause the receiver to spread, or concentrate all of the torsional load to one side once a load is placed on it. The pin set up distributes the load between four sturdy points. |
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Quoted: If they couldn't take the force, the tool would not have been designed the way it was. It seems to me your tool could cause the receiver to spread, or concentrate all of the torsional load to one side once a load is placed on it. The pin set up distributes the load between four sturdy points. This is incorrect. That type of tool, without modification, is responsible for many broken receivers. It is very easy to split an upper receiver at the forward pivot lug when using a tool like this one. |
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If they couldn't take the force, the tool would not have been designed the way it was. It seems to me your tool could cause the receiver to spread, or concentrate all of the torsional load to one side once a load is placed on it. The pin set up distributes the load between four sturdy points. This is incorrect. That type of tool, without modification, is responsible for many broken receivers. It is very easy to split an upper receiver at the forward pivot lug when using a tool like this one. Then why haven't all of those tools been pulled off the market? |
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Quoted: Quoted: Quoted: If they couldn't take the force, the tool would not have been designed the way it was. It seems to me your tool could cause the receiver to spread, or concentrate all of the torsional load to one side once a load is placed on it. The pin set up distributes the load between four sturdy points. This is incorrect. That type of tool, without modification, is responsible for many broken receivers. It is very easy to split an upper receiver at the forward pivot lug when using a tool like this one. Then why haven't all of those tools been pulled off the market? Because the uninformed still buy them. That style of tool is the absolute worst choice out of the available tools for the job. |
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If they couldn't take the force, the tool would not have been designed the way it was. It seems to me your tool could cause the receiver to spread, or concentrate all of the torsional load to one side once a load is placed on it. The pin set up distributes the load between four sturdy points. This is incorrect. That type of tool, without modification, is responsible for many broken receivers. It is very easy to split an upper receiver at the forward pivot lug when using a tool like this one. Then why haven't all of those tools been pulled off the market? Because the uninformed still buy them. That style of tool is the absolute worst choice out of the available tools for the job. If the breakages were caused by the tool, the manufacturers would be held liable for replacing the parts, and probably wouldn't risk the liability of continuing to sell them. Several manufactures make and sell these with no sign of stopping. That must mean a whole lot of people use them successfully. |
| It is worth noting that most uppers that are broken while using this tool are broken while removing the barrel nut. Over time the nuts get harder to remove than they were to put on, (old grease, lack of grease, many heat cycles, corrosion etc.). Use that tool and you will break an upper. |
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You are correct. This is why I said "eventually".
This being said, holding an Upper by just the pins is inviting disaster. 30 lbs. of torque will not likely be a problem but into the upper range of 80 lbs. things can get touchy. Removing a barrel nut can usually exceed 80 lbs. to break a frozen nut loose. This is when the likely hood of shearing the pins will occur. |
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Quoted: Quoted: Quoted: Quoted: Quoted: If they couldn't take the force, the tool would not have been designed the way it was. It seems to me your tool could cause the receiver to spread, or concentrate all of the torsional load to one side once a load is placed on it. The pin set up distributes the load between four sturdy points. This is incorrect. That type of tool, without modification, is responsible for many broken receivers. It is very easy to split an upper receiver at the forward pivot lug when using a tool like this one. Then why haven't all of those tools been pulled off the market? Because the uninformed still buy them. That style of tool is the absolute worst choice out of the available tools for the job. If the breakages were caused by the tool, the manufacturers would be held liable for replacing the parts, and probably wouldn't risk the liability of continuing to sell them. Several manufactures make and sell these with no sign of stopping. That must mean a whole lot of people use them successfully. Breakages are caused by this tool. If you have one of these then you clearly don't understand how it works and where it concentrates the pressures applied by torquing the barrel nut. They are shit and continuing to use one is foolish. |
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If they couldn't take the force, the tool would not have been designed the way it was. It seems to me your tool could cause the receiver to spread, or concentrate all of the torsional load to one side once a load is placed on it. The pin set up distributes the load between four sturdy points. This is incorrect. That type of tool, without modification, is responsible for many broken receivers. It is very easy to split an upper receiver at the forward pivot lug when using a tool like this one. Then why haven't all of those tools been pulled off the market? Because the uninformed still buy them. That style of tool is the absolute worst choice out of the available tools for the job. This answer, although rather blunt is a spot on explanation. Caveat emptor is always the rule. 
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If they couldn't take the force, the tool would not have been designed the way it was. It seems to me your tool could cause the receiver to spread, or concentrate all of the torsional load to one side once a load is placed on it. The pin set up distributes the load between four sturdy points. This is incorrect. That type of tool, without modification, is responsible for many broken receivers. It is very easy to split an upper receiver at the forward pivot lug when using a tool like this one. Then why haven't all of those tools been pulled off the market? Because the uninformed still buy them. That style of tool is the absolute worst choice out of the available tools for the job. If the breakages were caused by the tool, the manufacturers would be held liable for replacing the parts, and probably wouldn't risk the liability of continuing to sell them. Several manufactures make and sell these with no sign of stopping. That must mean a whole lot of people use them successfully. Breakages are caused by this tool. If you have one of these then you clearly don't understand how it works and where it concentrates the pressures applied by torquing the barrel nut. They are shit and continuing to use one is foolish. I understand exactly what it is doing, and I am fairly certain it works just fine when used as intended. There are a lot of stupid people out there. I am willing to bet many receivers are broken because of that, not because there is something wrong with tools that have been on the market for years and years. |
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Quoted: Quoted: Quoted: Quoted: Quoted: Quoted: Quoted: If they couldn't take the force, the tool would not have been designed the way it was. It seems to me your tool could cause the receiver to spread, or concentrate all of the torsional load to one side once a load is placed on it. The pin set up distributes the load between four sturdy points. This is incorrect. That type of tool, without modification, is responsible for many broken receivers. It is very easy to split an upper receiver at the forward pivot lug when using a tool like this one. Then why haven't all of those tools been pulled off the market? Because the uninformed still buy them. That style of tool is the absolute worst choice out of the available tools for the job. If the breakages were caused by the tool, the manufacturers would be held liable for replacing the parts, and probably wouldn't risk the liability of continuing to sell them. Several manufactures make and sell these with no sign of stopping. That must mean a whole lot of people use them successfully. Breakages are caused by this tool. If you have one of these then you clearly don't understand how it works and where it concentrates the pressures applied by torquing the barrel nut. They are shit and continuing to use one is foolish. I understand exactly what it is doing, and I am fairly certain it works just fine when used as intended. There are a lot of stupid people out there. I am willing to bet many receivers are broken because of that, not because there is something wrong with tools that have been on the market for years and years. Inferior tools = inferior final product. Good luck to you. Understanding that this is truly an inferior tool is obviously something a you are not ready to do. There are at least 6 far better choices that this pos. Carry on. |
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I didn't like the way this tool puts all the force on the studs for the pins when installing or removing a barrel. I made this simple 1" bar that slides snugly into the upper & is pulled down tight by two 3/8 bolts. This tightens the flat bottom of the upper against the aluminum bar. You still use the pin but this takes most of the load off of them. <a href="http://s14.photobucket.com/user/000oo/media/AR15uppertool.jpg.html" target="_blank">http://i14.photobucket.com/albums/a343/000oo/AR15uppertool.jpg</a> Way to improvise, adapt and overcome ! Someone posted a pic of the Windham Weaponry upper receiever fixture that they use in their shop. It is similar to yours except it also keys into the charging handle slot and is bored so that barrel nut alignment is possible with the fixture in place. I tried to find it but came up blank. |
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Didnt read the tire thread, but there is a wrong way and a right way to use these. Most are broken by having the upper straight up and down vs on its side. http://i1157.photobucket.com/albums/p590/NOVESKEN4/SeekinsBuild003_zps7919ac68.jpg vs http://img.photobucket.com/albums/v439/woode87/DSC_0942.jpg Yep exactly what I said earlier and exactly how I do my upper builds. |
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I have been using the same tool for many years and more than several hundred barrel install and removal.
No twisting or pressure on the receiver in any way with a tool made for the job and they are less cost than most of the blocks too. 
. and you can find them here . The blocks and clamps are better for hand guard and misc installing and removing. |
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You sir, just saved this FNG some headache. I had been considering buying a different block for fear of ruining my upper; I would have never thought to use it like that. I feel stupid. Thanks. You're a scholar and a gentleman Quoted: Didnt read the tire thread, but there is a wrong way and a right way to use these. Most are broken by having the upper straight up and down vs on its side. http://i1157.photobucket.com/albums/p590/NOVESKEN4/SeekinsBuild003_zps7919ac68.jpg vs http://img.photobucket.com/albums/v439/woode87/DSC_0942.jpg |
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I didn't like the way this tool puts all the force on the studs for the pins when installing or removing a barrel. I made this simple 1" bar that slides snugly into the upper & is pulled down tight by two 3/8 bolts. This tightens the flat bottom of the upper against the aluminum bar. You still use the pin but this takes most of the load off of them. <a href="http://s14.photobucket.com/user/000oo/media/AR15uppertool.jpg.html" target="_blank">http://i14.photobucket.com/albums/a343/000oo/AR15uppertool.jpg</a> Way to improvise, adapt and overcome ! Someone posted a pic of the Windham Weaponry upper receiever fixture that they use in their shop. It is similar to yours except it also keys into the charging handle slot and is bored so that barrel nut alignment is possible with the fixture in place. I tried to find it but came up blank. You can see those pictures here. Links to video and pictures are in this thread also. |
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I didn't like the way this tool puts all the force on the studs for the pins when installing or removing a barrel. I made this simple 1" bar that slides snugly into the upper & is pulled down tight by two 3/8 bolts. This tightens the flat bottom of the upper against the aluminum bar. You still use the pin but this takes most of the load off of them. <a href="http://s14.photobucket.com/user/000oo/media/AR15uppertool.jpg.html" target="_blank">http://i14.photobucket.com/albums/a343/000oo/AR15uppertool.jpg</a> Way to improvise, adapt and overcome ! Someone posted a pic of the Windham Weaponry upper receiever fixture that they use in their shop. It is similar to yours except it also keys into the charging handle slot and is bored so that barrel nut alignment is possible with the fixture in place. I tried to find it but came up blank. You can see those pictures here. Links to video and pictures are in this thread also. I give you the Mother of All AR Upper Fixtures..... 
That fixture looks so good, I think I just peed down my leg. |
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