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Posted: 1/27/2016 11:47:12 PM EDT
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I got a clamshell type upper block on order, should be sufficient for installing the barrel nut.
Maybe I am getting the physics wrong but I however leery about using it for installing the muzzle brake. Seems like I have a bit more risk of tweaking the upper installing the muzzle brake using the clamshell. Don't feel like spending money on barrel vise jaws to "do it right". As a stopgap, was thinking maybe about just using one of these on the barrel to counter the twisting motion of fighting through the crush washer: http://www.homedepot.com/p/Klein-Tools-6-in-Grip-it-Strap-Wrench-S-6H/100648057 Put the upper in the clamshell as a second pair of hands, use the strap wrench in one hand (a bit down from the muzzle) to counter the twisting action and a normal wrench on the muzzle brake. Or am I over-thinking and should just use the clamshell to install the brake? |
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How about just use some scrap wood as a barrel block?
Get two scrap pieces of 2x4, clamp together. Drill a hole with a 1/2" or thereabouts bit "in between" the clamped 2x4s. The idea is to end up with each piece having a groove cut down the middle. They make excellent and cheap field-expedient blocks. if for some reaosn you have a problem with the barrel turning, get some pine rosin for grip or wrap a piece of leather around the barrel. |
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Quoted: How about just use some scrap wood as a barrel block? Get two scrap pieces of 2x4, clamp together. Drill a hole with a 1/2" or thereabouts bit "in between" the clamped 2x4s. The idea is to end up with each piece having a groove cut down the middle. They make excellent and cheap field-expedient blocks. if for some reaosn you have a problem with the barrel turning, get some pine rosin for grip or wrap a piece of leather around the barrel. This is the correct answer. Clamshells are for barrel nuts, barrel blocks are for muzzle devices (though I did install a fair share of barrels this was as well, it's not the preferred method though. |
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Quoted:
How about just use some scrap wood as a barrel block? Get two scrap pieces of 2x4, clamp together. Drill a hole with a 1/2" or thereabouts bit "in between" the clamped 2x4s. The idea is to end up with each piece having a groove cut down the middle. They make excellent and cheap field-expedient blocks. if for some reaosn you have a problem with the barrel turning, get some pine rosin for grip or wrap a piece of leather around the barrel. I did much the same but made mine with a 1/2" v-groove rather than drilling a hole. The barrel will round ot the hole as it is clamped. 
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I just used a couple heavy duty pieces of cardboard. I folded each side of each one to within a 1/4" of the center, leaving it double thiickness on the sides, single for 1/2" in the middle. Two of these, one on each side of the barrel in a standard vice and I was good to go. I've done this multiple times with great results.
Cheap, no tools, drills, wood, etc. needed. I literally used the flaps off a shipping box that AR parts came in. |
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