I've also had them mar the outside of the receiver. I had an old sock I started putting uppers in then clamping it.
By far the best IMO is the tools that torque off of the barrel extension.
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I've also had them mar the outside of the receiver. I had an old sock I started putting uppers in then clamping it.
By far the best IMO is the tools that torque off of the barrel extension.
Bass pro had a upper receiver clamp that was like $15 and worked great for me.
I started off using a clamp style from Brownells but saw how the upper was twisting since one of the muzzle devices I put on required a little extra torque to go on. So I went with other's advice and grabbed a reaction rod. And after trying to remove a barrel from a BCM, I'm glad I had it since I probably would have damaged the receiver trying to get the barrel off (BCM puts it on pretty tight).
Honestly, go with the reaction rod or similar design. You can't go wrong.
Experience is a cruel teacher, gives the exam first and then the lesson.
The Brownells UR action block works just fine for taking off barrels and installing barrels. I understand how the reaction rod works but only see it shining when using billet UR's. If you want to install a flash hider do it the right way and use barrel vice padded jaws.
How tight are you putting on a muzzle device? You're only talking 15 to 20lbs. The Reaction Rod is a perfect for this. Mount it vertical in your vice, drop upper over it and engage. Get to work. Simple and fast.
I'm not trying to get into a pissing match with you about vice jaws and reaction rods but I have used the padded vice jaws exclusively for the last 5 years that I have been a full time Armorer and it has worked well. And yes I know putting on flash hiders/comps do not require much torque but until I have a reaction rod in hand and actually use it I'll stick with the right tool for the job. I'll just tell Colt and Remington to quit teaching and using these vice jaws in their Ar-15 Armorers classes.
I got a pair of nylon blocks from a guy on ebay. They work great and only cost $19.
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I just hate to see all the twisting going on when using an receiver block to remove a difficult barrel nut, or install one. The Reaction Rod just takes all the drama and worry out of barrel nuts and muzzle devices. I was lucky in that I got on board the original RR when they were $60 and readily available. Great tool. I don't see how it couldn't be superior to a vise block in terms of its ability to damage the component.
Last edited by Hmac; 10-19-13 at 16:02.
Another vote for a reaction rod. I've used the vice blocks and upper receiver block. The RR is the ticket. Makes barrel work too easy.
SF
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